HR job title
- Retired Distinguished Professor
- Contact Info
- 1 979 845 1411
Hardy, John Distinguished Professor
Positions
- Distinguished Professor, Physics and Astronomy, College of Arts and Sciences
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Overview
Publications
selected publications
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academic article
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Kolos, K., Hennessy, A. M., Scielzo, N. D., Iacob, V. E., Hardy, J. C., Stoyer, M. A., ... Zhu, S.
(2021).
New approach to precisely measure gamma-ray intensities for long-lived fission products, with results for the decay of Zr-95. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
1000, 165240-165240.
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Park, H. I., Hardy, J. C., Bencomo, M., Iacob, V. E., Towner, I. S., Macon, K. T., ... Kayani, A.
(2020).
Intensity of a weak 519-keV gamma ray following beta decay of the superallowed emitter Ar-34 determined via the S-33(p,gamma)Cl-34 reaction. PHYSICAL REVIEW C.
102(4), 045502.
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Hardy, J. C., & Towner, I. S.
(2020).
Superallowed 0(+) -> 0(+) nuclear beta decays: 2020 critical survey, with implications for Vud and CKM unitarity. PHYSICAL REVIEW C.
102(4), 045501.
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Horvat, V., Tereshatov, E. E., Hardy, J. C., Nica, N., Folden, C., Iacob, V. E., & Trzhaskovskaya, M. B.
(2020).
K-shell internal conversion coefficient for M4 decay of the 30.8 keV isomer in Nb-93. PHYSICAL REVIEW C.
102(1), 014310.
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Iacob, V. E., Hardy, J. C., Park, H. I., Bencomo, M., Chen, L., & Horvat, V.
(2020).
Precise beta branching-ratio measurement for the 0(+) -> 0(+) superallowed decay of Ar-34. PHYSICAL REVIEW C.
101(4), 045501.
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Iacob, V. E., Hardy, J. C., Park, H. I., Bencomo, M., Chen, L., Horvat, V., ... Saastamoinen, A.
(2020).
New precise half-life measurement for the superallowed beta(+) emitter Ar-34. PHYSICAL REVIEW C.
101(1), 015504.
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Bencomo, M., Hardy, J. C., Iacob, V. E., Park, H. I., Chen, L., Horvat, V., ... Towner, I. S.
(2019).
Precise branching ratio measurement for the superallowed beta(+) decay of Si-26: Completion of a second mirror pair. PHYSICAL REVIEW C.
100(1), 015503.
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Nica, N., Hardy, J. C., Iacob, V. E., Horvat, V., Park, H. I., Werke, T. A., ... Trzhaskovskaya, M. B.
(2018).
Precise measurement of alpha(K) and alpha(T) for the 39.8-keV E3 transition in Rh-103: Test of internal-conversion theory. PHYSICAL REVIEW C.
98(5), 054321.
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Shidling, P. D., Behling, R. S., Fenker, B., Hardy, J. C., Iacob, V. E., Mehlman, M., ... Melconian, D.
(2018).
High-precision half-life measurement of the beta(+) decay of Na-21. PHYSICAL REVIEW C.
98(1), 015502.
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Hardy, J. C., Nica, N., Iacob, V. E., & Trzhaskovskaya, M. B.
(2018).
Precise test of internal-conversion theory: K measurements for transitions in nine nuclei spanning 45 Z 78. APPLIED RADIATION AND ISOTOPES.
134, 406-409.
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Iacob, V. E., Hardy, J. C., Chen, L., Horvat, V., Bencomo, M., Nica, N., ... Saastamoinen, A.
(2018).
Precise half-life measurement of the superallowed emitter S-30. PHYSICAL REVIEW C.
97(3), 035501.
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Horvat, V., & Hardy, J. C.
(2017).
Sum-fit method of analysis of nuclear decay spectra affected by extending dead-time. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
868, 53-58.
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Nica, N., Hardy, J. C., Iacob, V. E., Werke, T. A., Folden, C., Ofodile, K., & Trzhaskovskaya, M. B.
(2017).
Precise measurement of alpha(K) and alpha(T) for the 109.3-keV M4 transition in Te-125: Test of internal-conversion theory. PHYSICAL REVIEW C.
95(6), 064301.
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Christian, G., Folden, C. M., Hardy, J., Lui, Y., May, D., Melconian, D., ... Yennello, S.
(2017).
The Cyclotron Institute at Texas A&M University. Nuclear Physics News.
27(2), 5-13.
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Nica, N., Hardy, J. C., Iacob, V. E., Park, H. I., Brandenburg, K., & Trzhaskovskaya, M. B.
(2017).
Precise measurement of alpha(K) for the 88.2-keV M4 transition in Te-127: Test of internal-conversion theory. PHYSICAL REVIEW C.
95(3), 034325.
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Eronen, T., Hardy, J. C., Canete, L., Jokinen, A., Hakala, J., Kankainen, A., ... Aysto, J.
(2017).
Q(EC) value of the superallowed beta emitter Sc-42. 95(2), 025501.
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Nica, N., Hardy, J. C., Iacob, V. E., Werke, T. A., Folden, C., Pineda, L., & Trzhaskovskaya, M. B.
(2016).
Precise measurement of alpha(K) and alpha(T) for the 150.8-keV E3 transition in Cd-111: Test of internal-conversion theory. PHYSICAL REVIEW C.
93(3), 034305.
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Towner, I. S., & Hardy, J. C.
(2015).
Theoretical corrections and world data for the superallowed f t values in the beta decays of Ti-42, Cr-46, Fe-50, and Ni-54. 92(5), 055505.
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Park, H. I., Hardy, J. C., Iacob, V. E., Bencomo, M., Chen, L., Horvat, V., ... Towner, I. S.
(2015).
Precise measurement of branching ratios in the beta decay of Ca-38. 92(1), 015502.
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Audi, G., Blaum, K., Block, M., Bollen, G., Goriely, S., Hardy, J. D., ... Zhang, Y. H.
(2015).
Comment on "Atomic mass compilation 2012" by B. Pfeiffer, K. Venkataramaniah, U. Czok, C. Scheidenberger. Atomic Data and Nuclear Data Tables.
103, 1-3.
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Wilkins, P. A., Sheahan, B. J., Vander Werf, K. A., Castagnetti, C., Hardy, J., Schoster, A., & Boston, R. C.
(2015).
Preliminary investigation of the area under the L-lactate concentration-time curve (LACArea) in critically ill equine neonates. Journal of Veterinary Internal Medicine (JVIM).
29(2), 659-662.
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Hardy, J. C., & Towner, I. S.
(2015).
Superallowed 0(+) -> 0(+) nuclear beta decays: 2014 critical survey, with precise results for V-ud and CKM unitarity. 91(2), 025501.
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Towner, I. S., & Hardy, J. C.
(2015).
Parametrization of the statistical rate function for select superallowed transitions. 91(1), 015501.
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Hardy, J. C., & Towner, I. S.
(2014).
The measurement and interpretation of superallowed 0(+) -> 0(+) nuclear beta decay. Journal of Physics G: Nuclear and Particle Physics.
41(11), 114004-114004.
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Shidling, P. D., Melconian, D., Behling, S., Fenker, B., Hardy, J. C., Iacob, V. E., ... Roeder, B. T.
(2014).
Precision half-life measurement of the beta(+) decay of K-37. Physical Review C: Nuclear Physics.
90(3), 032501.
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Nica, N., Hardy, J. C., & Iacob, V. E.
(2014).
Further Test of Internal-conversion Theory with a Measurement in Sn-119. Nuclear Data Sheets.
120, 91-94.
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Hardy, J. C., Iacob, V. E., Park, H. I., Chen, L., Nica, N., Horvat, V., Tribble, R. E., & Towner, I. S.
(2014).
FT values measured to 0.1% for superallowed beta transitions: metrology at sub-second time scales. APPLIED RADIATION AND ISOTOPES.
87, 297-301.
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Hardy, J. C., Nica, N., Iacob, V. E., Miller, S., Maguire, M., & Trzhaskovskaya, M. B.
(2014).
Precise test of internal-conversion theory: transitions measured in five nuclei spanning 50Z78. APPLIED RADIATION AND ISOTOPES.
87, 87-91.
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Park, H. I., Hardy, J. C., Iacob, V. E., Bencomo, M., Chen, L., Horvat, V., ... Towner, I. S.
(2014).
decay of (38)Ca: sensitive test of isospin symmetry-breaking corrections from mirror superallowed 0+ 0+ transitions. Physical Review Letters.
112(10), 102502.
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Nica, N., Hardy, J. C., Iacob, V. E., Bencomo, M., Horvat, V., Park, H. I., ... Trzhaskovskaya, M. B.
(2014).
Precise measurement of alpha(K) for the 65.7-keV M4 transition in Sn-119: Extended test of internal-conversion theory. 89(1), 014303.
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Chen, L., Hardy, J. C., Bencomo, M., Horvat, V., Nica, N., & Park, H. I.
(2013).
Digital beta counting and pulse-shape analysis for high-precision nuclear beta decay half-life measurements: Tested on Al-26(m). Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
728, 81-91.
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Hardy, J. C., & Towner, I. S.
(2013).
CKM unitarity normalization tests, present and future. Annalen der Physik.
525(7), 443-451.
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Horvat, V., & Hardy, J. C.
(2013).
Time-interval analysis of beta decay. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
713, 19-26.
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Eronen, T., & Hardy, J. C.
(2012).
High-precision Q(EC)-value measurements for superallowed decays. European Physical Journal A.
48(4), 48-8.
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Park, H. I., Hardy, J. C., Iacob, V. E., Chen, L., Goodwin, J., Nica, N., ... Tribble, R. E.
(2012).
Precise half-life measurement of the superallowed beta(+) emitter V-46. Physical Review C: Nuclear Physics.
85(3), 035501.
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Melconian, D., Triambak, S., Bordeanu, C., Garcia, A., Hardy, J. C., Iacob, V. E., ... Zhai, Y.
(2012).
beta decay of Cl-32: Precision gamma-ray spectroscopy and a measurement of isospin-symmetry breaking. Physical Review C: Nuclear Physics.
85(2), 025501.
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Park, H. I., Hardy, J. C., Iacob, V. E., Banu, A., Chen, L., Golovko, V. V., ... Tribble, R. E.
(2011).
Precise half-life measurement of the superallowed beta(+) emitter Ca-38. Physical Review C: Nuclear Physics.
84(6), 065502.
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Eronen, T., Gorelov, D., Hakala, J., Hardy, J. C., Jokinen, A., Kankainen, A., ... yst, J.
(2011).
Publisher's Note: QEC values of the superallowed emitters 10C, 34Ar, 38Ca, and 46V [Phys. Rev. C 83, 055501 (2011)]. PHYSICAL REVIEW C.
84(5), 059905.
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Melconian, D., Triambak, S., Bordeanu, C., Garca, A., Hardy, J. C., Iacob, V. E., ... Zhai, Y.
(2011).
Experimental validation of the largest calculated isospin-symmetry-breaking effect in a superallowed Fermi decay. Physical Review Letters.
107(18), 182301.
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Eronen, T., Gorelov, D., Hakala, J., Hardy, J. C., Jokinen, A., Kankainen, A., ... ysto, J.
(2011).
Publishers Note: QEC values of the superallowed emitters C10, Ar34, Ca38, and V46 [Phys. Rev. C 83, 055501 (2011)]. PHYSICAL REVIEW C.
83(6), 069901.
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Eronen, T., Gorelov, D., Hakala, J., Hardy, J. C., Jokinen, A., Kankainen, A., ... Aysto, J.
(2011).
Q(EC) values of the superallowed beta emitters C-10, Ar-34, Ca-38, and V-46. 83(5), 055501.
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Saastamoinen, A., Trache, L., Banu, A., Bentley, M. A., Davinson, T., Hardy, J. C., ... Aysto, J.
(2011).
Experimental study of beta-delayed proton decay of Al-23 for nucleosynthesis in novae. 83(4), 045808.
-
Towner, I. S., & Hardy, J. C.
(2010).
Comparative tests of isospin-symmetry-breaking corrections to superallowed 0(+) -> 0(+) nuclear beta decay. 82(6), 065501.
-
Goodwin, J. R., Nica, N., Iacob, V. E., Dibidad, A., & Hardy, J. C.
(2010).
Measurement of the half-life of Au-198 in a nonmetal: High-precision measurement shows no host-material dependence. 82(4), 044320.
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Ball, G. C., Boisvert, G., Bricault, P., Churchman, R., Dombsky, M., Lindner, T., ... Mak, H.
(2010).
Precise half-life measurement of the superallowed beta(+) emitter K-38(m). 82(4), 045501.
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Iacob, V. E., Hardy, J. C., Banu, A., Chen, L., Golovko, V. V., Goodwin, J., ... Tribble, R. E.
(2010).
Precise half-life measurement of the superallowed beta(+) emitter Si-26. Physical Review C: Nuclear Physics.
82(3), 035502.
-
Towner, I. S., & Hardy, J. C.
(2010).
The evaluation of V-ud and its impact on the unitarity of the Cabibbo-Kobayashi-Maskawa quark-mixing matrix. 73(4), 046301-046301.
-
Eronen, T., Elomaa, V., Hakala, J., Hardy, J. C., Jokinen, A., Moore, I. D., ... Ayst, J.
(2009).
QEC values of the superallowed beta emitters 34Cl and 38Km. 103(25), 252501.
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Nica, N., Hardy, J. C., Iacob, V. E., Goodwin, J., Balonek, C., Hernberg, M., Nolan, J., & Trzhaskovskaya, M. B.
(2009).
Further test of internal-conversion theory with a measurement in Pt-197. 80(6), 064314.
-
Goodwin, J. R., Golovko, V. V., Iacob, V. E., & Hardy, J. C.
(2009).
Half-life of the electron-capture decay of Ru-97: Precision measurement shows no temperature dependence. 80(4), 045501.
-
Hardy, J. C., & Towner, I. S.
(2009).
Superallowed 0(+)-> 0(+) nuclear beta decays: A new survey with precision tests of the conserved vector current hypothesis and the standard model. 79(5), 055502.
-
Golovko, V. V., Iacob, V. E., & Hardy, J. C.
(2008).
The use of Geant4 for simulations of a plastic beta-detector and its application to efficiency calibration. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
594(2), 266-272.
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Eronen, T., Elomaa, V., Hager, U., Hakala, J., Hardy, J. C., Jokinen, A., ... Ayst, J.
(2008).
QEC values of the superallowed beta emitters 50Mn and 54Co. 100(13), 132502.
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Iacob, V. E., Hardy, J. C., Golovko, V., Goodwin, J., Nica, N., Park, H. I., Trache, L., & Tribble, R. E.
(2008).
Precise half-life measurement of the superallowed beta(+) emitter C-10. 77(4), 045501.
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Eronen, T., Elomaa, V., Hager, U., Hakala, J., Hardy, J. C., Jokinen, A., ... Aysto, J.
(2008).
Publishers Note: QEC Values of the Superallowed Emitters Mn50 and Co54 [Phys. Rev. Lett. 100, 132502 (2008)]. Physical Review Letters.
100(14), 149902.
-
Nica, N., Hardy, J. C., Iacob, V. E., Balonek, C., & Trzhaskovskaya, M. B.
(2008).
Internal conversion coefficients in Cs-134, Ba-137, and La-139: A precise test of theory. 77(3), 034306.
-
Towner, I. S., & Hardy, J. C.
(2008).
Improved calculation of the isospin-symmetry-breaking corrections to superallowed Fermi beta decay. 77(2), 025501.
-
Goodwin, J. R., Golovko, V. V., Iacob, V. E., & Hardy, J. C.
(2007).
The half-life of Au-198: High-precision measurement shows no temperature dependence. European Physical Journal A.
34(3), 271-274.
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Nica, N., Hardy, J. C., Iacob, V. E., Rockwell, W. E., & Trzhaskovskaya, M. B.
(2007).
Test of internal-conversion theory with measurements in Cs-134 and Ba-137. 75(2), 024308.
-
Eronen, T., Elomaa, V., Hager, U., Hakala, J., Jokinen, A., Kankainen, A., ... Kolhinen, V. S.
(2006).
Q values of the superallowed beta emitters 26Alm, 42Sc, and 46V and their impact on Vud and the unitarity of the Cabibbo-Kobayashi-Maskawa matrix. 97(23), 232501.
-
Hardy, J. C., & Towner, I. S.
(2006).
Probing the Standard Model with Superallowed Nuclear Beta Decay. Nuclear Physics News.
16(4), 11-17.
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Iacob, V. E., Hardy, J. C., Brinkley, J. F., Gagliardi, C. A., Mayes, V. E., Nica, N., ... Tribble, R. E.
(2006).
Precise half-life measurements for the superallowed beta(+) emitters Ar-34 and Cl-34. Physical Review C: Nuclear Physics.
74(5), 055502.
-
Iacob, V. E., Zhai, Y., Al-Abdullah, T., Fu, C., Hardy, J. C., Nica, N., ... Tribble, R. E.
(2006).
beta decay of proton-rich nucleus Al-23 and astrophysical consequences. 74(4), 045810.
-
Iacob, V. E., Hardy, J. C., Gagliardi, C. A., Goodwin, J., Nica, N., Park, H. I., ... Towner, I. S.
(2006).
Branching ratios for the beta decay of Na-21. Physical Review C: Nuclear Physics.
74(1), 015501.
-
Hardy, J. C., Towner, I. S., & Savard, G.
(2006).
Mass measurements and superallowed beta decay. International Journal of Mass Spectrometry.
251(2-3), 95-101.
-
Towner, I. S., & Hardy, J. C.
(2005).
New analysis of O-14 beta decay: Branching ratios and conserved vector current consistency. 72(5), 055501.
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Savard, G., Buchinger, F., Clark, J. A., Crawford, J. E., Gulick, S., Hardy, J. C., ... Wang, Y.
(2005).
Q value of the superallowed decay of 46V and its influence on Vud and the unitarity of the Cabibbo-Kobayashi-Maskawa matrix. Physical Review Letters.
95(10), 102501.
-
Nica, N., Hardy, J. C., Iacob, V. E., Montague, J. R., & Trzhaskovskaya, M. B.
(2005).
Precise measurement of K-shell fluorescence yield in iridium: An improved test of internal-conversion theory. 71(5), 054320.
-
Hardy, J. C., & Towner, I. S.
(2005).
Superallowed 0(+)-> 0(+) nuclear beta decays: A critical survey with tests of the conserved vector current hypothesis and the standard model. 71(5), 055501.
-
Grinyer, G. F., Svensson, C. E., Andreoiu, C., Andreyev, A. N., Austin, R., Ball, G. C., ... Zganjar, E. F.
(2005).
High precision measurements of Na-26 beta(-) decay. 71(4), 044309.
-
Hardy, J. C., & Towner, I. S.
(2005).
New limits on fundamental weak-interaction parameters from superallowed beta decay. 94(9), 092502.
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Clark, J. A., Barber, R. C., Blank, B., Boudreau, C., Buchinger, F., Crawford, J. E., ... Zhou, Z.
(2004).
Precise mass measurements of astrophysical interest made with the Canadian Penning trap mass spectrometer. NUCLEAR PHYSICS A.
746(1-4 SPEC.ISS.), 342-346.
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Nica, N., Hardy, J. C., Iacob, V. E., Raman, S., Nestor, C. W., & Trzhaskovskaya, M. B.
(2004).
Precise measurement of alpha(K) for the M4 transition from Ir-193(m): A test of internal-conversion theory. 70(5), 054305-054301.
-
Savard, G., Clark, J. A., Buchinger, F., Crawford, J. E., Gulick, S., Hardy, J. C., ... Zhou, Z.
(2004).
Q value of the superallowed decay of Mg-22 and the calibration of the Na-21(p,gamma) experiment. Physical Review C: Nuclear Physics.
70(4), 042501-042501.
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Abele, H., Barberio, E., Dubbers, D., Gluck, F., Hardy, J. C., Marciano, W. J., Serebrov, A., & Severijns, N.
(2004).
Quark mixing, CKM unitarity - The unitarity problem. European Physical Journal C.
33(1), 1-8.
-
Helmer, R. G., Hardy, J. C., Iacob, V. E., Sanchez-Vega, M., Neilson, R. G., & Nelson, J.
(2003).
The use of Monte Carlo calculations in the determination of a Ge detector efficiency curve. 511(3), 360-381.
-
Hardy, J. C., Iacob, V. E., Sanchez-Vega, M., Neilson, R. G., Azhari, A., Gagliardi, C. A., ... Tribble, R. E.
(2003).
High precision measurement of the superallowed 0+ --> 0+ beta decay of 22Mg. Physical Review Letters.
91(8), 082501.
-
Hardy, J. C., Iacob, V. E., Sanchez-Vega, M., Neilson, R. G., Azhari, A., Gagliardi, C. A., ... Tribble, R. E.
(2003).
High Precision Measurement of the Superallowed 0+ 0 + Decay of 22Mg. Physical Review Letters.
91(8), 825011-825014.
-
Hyman, B. C., Iacob, V. E., Azhari, A., Gagliardi, C. A., Hardy, J. C., Mayes, V. E., ... Tribble, R. E.
(2003).
Beta decay of 62Ga. Physical Review C: Nuclear Physics.
68(1), 155011-155016.
-
Hyman, B. C., Iacob, V. E., Azhari, A., Gagliardi, C. A., Hardy, J. C., Mayes, V. E., ... Tribble, R. E.
(2003).
Beta decay of Ga-62. Physical Review C: Nuclear Physics.
68(1), 015501.
-
Piechaczek, A., Zganjar, E. F., Ball, G. C., Bricault, P., D'Auria, J. M., Hardy, J. C., ... Wood, J. L.
(2003).
High precision branching ratio measurement for the superallowed beta decay of Rb-74: A prerequisite for exacting tests of the standard model. Physical Review C: Nuclear Physics.
67(5), 051305-513055.
-
Towner, I. S., & Hardy, J. C.
(2003).
The evaluation of V-ud, experiment and theory. 29(1), 197-211.
-
Towner, I. S., & Hardy, J. C.
(2002).
Calculated corrections to superallowed Fermi beta decay: New evaluation of the nuclear-structure-dependent terms. 66(3), 035501-3550113.
-
Hardy, J. C., & Towner, I. S.
(2002).
Superallowed beta decay of nuclei with a >or= 62: the limiting effect of weak Gamow-Teller branches. 88(25 Pt 1), 252501.
-
Hardy, J. C., & Towner, I. S.
(2002).
Superallowed beta decay of nuclei with A 62: The limiting effect of weak Gamow-Teller branches. Physical Review Letters.
88(25 I), 2525011-2525014.
-
Schnfeld, E., Janssen, H., Klein, R., Hardy, J. C., Iacob, V., Sanchez-Vega, M., Griffin, H. C., & Ludington, M. A.
(2002).
Production of Co-60 sources for high-accuracy efficiency calibrations of gamma-ray spectrometers. APPLIED RADIATION AND ISOTOPES.
56(1-2), 215-221.
-
Ball, G. C., Bishop, S., Behr, J. A., Boisvert, G. C., Bricault, P., Cerny, J., ... Towner, I. S.
(2001).
Precise half-life measurement for the superallowed 0(+)-->0(+) beta emitter (74)Rb: first results from the new radioactive beam facility (ISAC) at TRIUMF. Physical Review Letters.
86(8), 1454-1457.
-
Savard, G., Barber, R. C., Boudreau, C., Buchinger, F., Caggiano, J., Clark, J., ... Vaz, J.
(2001).
The Canadian Penning Trap Spectrometer at Argonne. Hyperfine Interactions.
132(1-4), 221-228.
-
Savard, G., Barber, R. C., Buchinger, F., Crawford, J. E., Feng, X., Gulick, S., ... Uusitalo, J.
(1999).
Weak interaction studies with an on-line Penning trap mass spectrometer. NUCLEAR PHYSICS A.
654(1), 961c-966c.
-
Savard, G., Barber, R. C., Buchinger, F., Crawford, J. E., Feng, X., Gulick, S., ... Uusitalo, J.
(1999).
Weak interaction studies with an on-line Penning trap mass spectrometer. 654(1), 961C-966C.
-
Koslowsky, V. T., Hagberg, E., Hardy, J. C., Savard, G., Schmeing, H., Sharma, K. S., & Sun, X. J.
(1997).
The half-lives of 42Sc, 46V, 50Mn and 54Co. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
401(2-3), 289-298.
-
Savard, G., Barber, R. C., Beeching, D., Buchinger, F., Crawford, J. E., Gulick, S., ... Watson, M.
(1997).
The Canadian Penning trap mass spectrometer. NUCLEAR PHYSICS A.
626(1-2), 353-356.
-
Koslowsky, V. T., Hagberg, E., Hardy, J. C., Schmeing, H., & Towner, I. S.
(1997).
50Fe Beta decay. NUCLEAR PHYSICS A.
624(3), 293-298.
-
Hagberg, E., Towner, I. S., Alexander, T. K., Ball, G. C., Forster, J. S., Hardy, J. C., ... Savard, G.
(1997).
Measurement of the l-forbidden Gamow-Teller branch of 37K. PHYSICAL REVIEW C.
56(1), 135-141.
-
Koslowsky, V. T., Andrews, H. R., Beeching, D., Bray, N., Davies, W. G., Hagberg, E., ... Bolusmjak, M.
(1997).
Coupling of a He-jet transfer system to a Cs sputter ion source for the acceleration of radioactive ions with the Chalk River MP Tandem accelerator. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms.
126(1-4), 190-193.
-
Hagberg, E., Towner, I. S., Hardy, J. C., Koslowsky, V. T., Savard, G., & Sterbenz, S.
(1997).
Beta decays of 44V and 52Co. NUCLEAR PHYSICS A.
613(3), 183-198.
-
Savard, G., Galindo-Uribarri, A., Hagberg, E., Hardy, J. C., Koslowsky, V. T., Radford, D. C., & Towner, I. S.
(1995).
10C superallowed branching ratio and the Cabibbo-Kobayashi-Maskawa matrix unitarity. 74(9), 1521-1524.
-
Hagberg, E., Koslowsky, V. T., Hardy, J. C., Towner, I. S., Hykawy, J. G., Savard, G., & Shinozuka, T.
(1995).
Tests of Isospin Mixing Corrections in Superallowed 0+0+ Decays. Physical Review Letters.
74(6), 1041-1041.
-
Hardy, J.
(1995).
Science as heroic achievement: A lost concept. Nuclear Physics News.
5(3), 4-4.
-
Hagberg, E., Koslowsky, V. T., Hardy, J. C., Towner, I. S., Hykawy, J. G., Savard, G., & Shinozuka, T.
(1994).
Tests of isospin mixing corrections in superallowed 0(+)-->0(+) beta decays. Physical Review Letters.
73(3), 396-399.
-
Hagberg, E., Alexander, T. K., Neeson, I., Koslowsky, V. T., Ball, G. C., Dyck, G. R., ... Towner, I. S.
(1994).
Confirmation of the l-forbidden Gamow-Teller decay branch of 39Ca. NUCLEAR PHYSICS A.
571(3), 555-568.
-
Sharma, K. S., Barber, R. C., Crawford, J. E., Lee, J., Moore, R. B., Buchinger, F., ... Savard, G.
(1993).
The proposed Penning trap mass spectrometer facility at TASCC. Hyperfine Interactions.
81(1-4), 217-222.
-
Shu-wei, X., Jun-sheng, G., Shuang-gui, Y., Man-qing, L., Hagberg, E., Koslowsky, V. T., ... Schmeing, H.
(1992).
Erratum: Decay of 120Ba. Physical Review C: Nuclear Physics.
46(6), 2644-2644.
-
Shu-wei, X., Jun-sheng, G., Shuang-gui, Y., Man-qing, L., Hagberg, E., Koslowsky, V. T., ... Schmeing, H.
(1992).
Decay of 120Ba. Physical Review C: Nuclear Physics.
46(2), 510-515.
-
Hagberg, E., Sharma, K. S., Dyck, G. R., Koslowsky, V. T., Unger, P. P., Hardy, J. C., Schmeing, H., & Barber, R. C.
(1992).
Indirect measurements of beam-energy differences for various species of ions extracted from a FEBIAD source. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms.
70(1-4), 546-550.
-
Koslowsky, V. T., Watson, M. J., Hagberg, E., Hardy, J. C., Perry, W. L., Steer, M. G., ... Sharma, K. S.
(1992).
The Chalk River high-temperature helium-jet ion source. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms.
70(1-4), 245-253.
-
Hagberg, E., Sun, X. J., Koslowsky, V. T., Schmeing, H., & Hardy, J. C.
(1992).
Decays and masses of 162,163Ta and some neighboring nuclides. Physical Review C: Nuclear Physics.
45(4), 1609-1618.
-
Watson, M. J., Koslowsky, V. T., Hagberg, E., Hardy, J. C., Steer, M. G., Schmeing, H., & Perry, W. L.
(1992).
Technical considerations in the design of the Chalk River high temperature heliumjet ion source. Review of Scientific Instruments.
63(4), 2497-2499.
-
Sharma, K. S., Hagberg, E., Dyck, G. R., Hardy, J. C., Koslowsky, V. T., Schmeing, H., ... Watson, M.
(1991).
Masses of 103,104,105In and 72,73Br. Physical Review C: Nuclear Physics.
44(6), 2439-2444.
-
Milton, J., Humphries, M. E., Hepburn, J. D., Muir, G. W., Corriveau, N. R., Chevalier, M., ... Seddon, W. A.
(1990).
Atomic energy of Canada Limited. Atomic Energy of Canada Limited, AECL (Report).
-
Hardy, J. C., Towner, I. S., Koslowsky, V. T., Hagberg, E., & Schmeing, H.
(1990).
Superallowed 0+ 0+ nuclear -decays: A critical survey with tests of CVC and the standard model. NUCLEAR PHYSICS A.
509(3), 429-460.
-
Clifford, E., Hagberg, E., Hardy, J. C., Schmeing, H., Azuma, R. E., Evans, H. C., ... Towner, I. S.
(1989).
The decay of 20Na: Measurements of isospin mixing and the weak vector coupling constant as well as other new decay data. NUCLEAR PHYSICS A.
493(2), 293-322.
-
Sharma, K. S., Schmeing, H., Evans, H. C., Hagberg, E., Hardy, J. C., & Koslowsky, V. T.
(1989).
The direct determination of the masses of unstable atoms with the chalk river on-line isotope separator. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
275(1), 123-132.
-
Turcotte, R., Dautet, H., Mark, S. K., Hagberg, E., Koslowsky, V. T., Hardy, J. C., & Schmeing, H.
(1988).
Decay of140Gd to states inN=77140Eu. 331(1), 109-110.
-
Koslowsky, V. T., Hardy, J. C., Hagberg, E., Azuma, R. E., Ball, G. C., Clifford, E., ... Sharma, K. S.
(1987).
The precise determination of QEC-value differences between four pairs of superallowed -emitters: 14O and 26mAl, 26mAl and 42Sc, 42Sc and 54Co, 50Mn and 54Co. NUCLEAR PHYSICS A.
472(3), 419-444.
-
Koslowsky, V. T., Azuma, R. E., Evans, H. C., Hagberg, E., Hardy, J. C., Leslie, J. R., Schmeing, H., & Virtue, C.
(1987).
The precise determination of some -ray transition energies in 26Al, 27Al and 55Co. NUCLEAR PHYSICS A.
472(3), 408-418.
-
Sharma, K. S., Barber, R. C., Duckworth, H. E., Dyck, G. R., Lander, C. A., Schmeing, H., ... Koslowsky, V. T.
(1987).
Direct mass measurements at the TASCC facility: The Manitoba-Chalk River on-line mass spectrometer. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms.
26(1-3), 362-370.
-
Schmeing, H., Wills, J. S., Hagberg, E., Hardy, J. C., Koslowsky, V. T., & Perry, W. L.
(1987).
The Chalk River helium-jet ion source. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms.
26(1-3), 321-327.
-
Schmeing, H., Wills, J. S., Hagberg, E., Hardy, J. C., Koslowsky, V. T., & Perry, W. L.
(1986).
CHALK RIVER HELIUM-JET ION SOURCE. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms.
B26(1-3), 301-303.
-
Hardy, J. C.
(1985).
Exotic nuclei and their decay. Science.
227(4690), 993-999.
-
Clifford, E., Hagberg, E., Koslowsy, V. T., Hardy, J. C., Schmeing, H., & Azuma, R. E.
(1984).
Measurements of the response of a hybrid detector telescope to mono-energetic beams of positrons and electrons in the energy range 0.83.8 MeV. Nuclear Instruments & Methods in Physics Research.
224(3), 440-447.
-
Clifford, E., Hagberg, E., Koslowsy, V. T., Hardy, J. C., Schmeing, H., & Azuma, R. E.
(1984).
Measurements of the response of a hybrid detector telescope to mono-energetic beams of positrons and electrons in the energy range 0.83.8 MeV. Nuclear Instruments & Methods in Physics Research.
224(3), 440-447.
-
Hardy, J. C., Jonson, B., & Hansen, P. G.
(1984).
A comment on Pandemonium. Physics Letters B.
136(5-6), 331-333.
-
Schrewe, U. J., Hagberg, E., Schmeing, H., Hardy, J. C., Koslowsky, V. T., & Sharma, K. S.
(1984).
Alpha decay of neutron-deficient rhenium and osmium isotopes. 315(1), 49-55.
-
Schrewe, U. J., Hagberg, E., Schmeing, H., Hardy, J. C., Koslowsky, V. T., & Sharma, K. S.
(1983).
164Ta, identification of a new isotope. 310(4), 295-300.
-
Koslowsky, V. T., Hagberg, E., Hardy, J. C., Azuma, R. E., Clifford, E., Evans, H. C., ... Sharma, K. S.
(1983).
The half-lives of 26mAl, 34Cl, 38mK: Precision measurements with isotope-separated samples. NUCLEAR PHYSICS A.
405(1), 29-39.
-
Hagberg, E., Hardy, J. C., Schmeing, H., Clifford, E., & Koslowsky, V. T.
(1983).
The decays of the Tz = 32 -delayed proton precursors 83Zr, 87Mo and 91mRu. NUCLEAR PHYSICS A.
395(1), 152-164.
-
Clifford, E., Hardy, J. C., Schmeing, H., Azuma, R. E., Evans, H. C., Faestermann, T., ... Towner, I. S.
(1983).
Kinematic Shifts in the -Delayed Particle Decay of Na20, and the - Angular Correlation. Physical Review Letters.
50(1), 23-26.
-
Koslowsky, V. T., Hardy, J. C., Azuma, R. E., Ball, G. C., Clifford, E., Davies, W. G., ... Sharma, K. S.
(1982).
Fermi beta-decay: precision Q-value doublet measurements by a new technique. Physics Letters B.
119(1-3), 57-60.
-
Hagberg, E., Hardy, J. C., Schmeing, H., Evans, H. C., Schrewe, U. J., Koslowsky, V. T., Sharma, K. S., & Clifford, E.
(1982).
The decay of a new nuclide: 71Br. NUCLEAR PHYSICS A.
383(1), 109-118.
-
Schrewe, U. J., Hagberg, E., Schmeing, H., Hardy, J. C., Koslowsky, V. T., Sharma, K. S., & Clifford, E.
(1982).
Decay studies of the new isotopes Hf162,163. PHYSICAL REVIEW C.
25(6), 3091-3103.
-
Hardy, J. C.
(1982).
Towards a reliable method for calculating average radiation widths in exotic nuclei. Physics Letters B.
109(4), 242-244.
-
Hardy, J. C., Faestermann, T., Schmeing, H., Macdonald, J. A., Andrews, H. R., Geiger, J. S., Graham, R. L., & Jackson, K. P.
(1981).
Tz = case12 -delayed proton precursors (II). The decays of 65Ge and 73Kr. NUCLEAR PHYSICS A.
371(3), 349-363.
-
Schmeing, H., Hardy, J. C., Hagberg, E., Perry, W. L., Wills, J. S., Camplan, J., & Rosenbaum, B.
(1981).
The chalk river on-line isotope separator. Nuclear Instruments & Methods in Physics Research.
186(1-2), 47-59.
-
Schmeing, H., Hardy, J. C., Hagberg, E., Perry, W. L., Wills, J. S., Camplan, J., & Rosenbaum, B.
(1981).
The chalk river on-line isotope separator. Nuclear Instruments & Methods in Physics Research.
186(1-2), 47-59.
-
Asboe-Hansen, P., Hagberg, E., Hansen, P. G., Hardy, J. C., Jonson, B., & Mattsson, S.
(1981).
Average excited state lifetimes in 73Br. NUCLEAR PHYSICS A.
361(1), 23-34.
-
Hardy, J. C., Ball, G. C., Davies, W. G., Forster, J. S., Schmeing, H., & Clifford, E.
(1981).
A precise PKP+ measurement at Z = 55 (I). The mass of 130Cs. NUCLEAR PHYSICS A.
357(2), 356-364.
-
Hagberg, E., Hardy, J. C., Jonson, B., & Tidemand-Petersson, P.
(1981).
A precise PKP+ measurement at Z = 55 (II). The decay of 130Cs. NUCLEAR PHYSICS A.
357(2), 365-380.
-
Ewan, G. T., Hagberg, E., Hardy, J. C., Jonson, B., Mattsson, S., Tidemand-Petersson, P., & Towner, I. S.
(1980).
The decay of 35K. NUCLEAR PHYSICS A.
343(C), 109-120.
-
Hardy, J. C., Schmeing, H., Hagberg, E., Perry, W., Wills, J., Clifford, E., ... Evans, H.
(1980).
The decay of 49Mn: First results from the chalk river on-line isotope separator. Physics Letters B.
91(2), 207-210.
-
Ewan, G. T., Hagberg, E., Hardy, J. C., Jonson, B., Mattsson, S., Tidemand-Petersson, P., & Collaboration, T. I.
(1980).
Beta-delayed proton and alpha emission from 36K. NUCLEAR PHYSICS A.
337(2), 189-193.
-
Collaboration, T. I., Carraz, L. C., Ewan, G. T., Hagberg, E., Hardy, J. C., Jonson, B., ... Tidemand-Petersson, P.
(1979).
A precise determination of the excitation energy of the lowest T=32 state in 35Ar. Physics Letters B.
85(2-3), 212-214.
-
Jackson, K. P., Azuma, R. E., Berka, I., Faestermann, T., Geiger, J. S., Hardy, J. C., & Schmeing, H.
(1979).
The weak neutral current: search for a 0 isomer in 42Sc and 46V. CANADIAN JOURNAL OF PHYSICS.
57(3), 411-416.
-
Hagberg, E., Hardy, J. C., Jonson, B., Mattsson, S., Tidemand-Petersson, P., & Collaboration, T. I.
(1979).
The superallowed decay of 35Ar: A persistent anomaly. NUCLEAR PHYSICS A.
313(3), 276-282.
-
Collaboration, T. I., Asboe-Hansen, P., Hagberg, E., Hansen, P. G., Hardy, J. C., Hornshj, P., ... Tidemand-Petersson, P.
(1978).
Excited state lifetimes in 73Br measured by the particle X-ray coincidence technique. Physics Letters B.
77(4-5), 363-366.
-
Collaboration, T. I., Elmroth, T., Hagberg, E., Hansen, P. G., Hardy, J. C., Jonson, B., Ravn, H. L., & Tidemand-Petersson, P.
(1978).
Beta-delayed proton emission from 97Cd and 99Cd. NUCLEAR PHYSICS A.
304(2), 493-502.
-
Hardy, J. C., Jonson, B., & Hansen, P. G.
(1978).
The essential decay of pandemonium: -delayed neutrons. NUCLEAR PHYSICS A.
305(1), 15-28.
-
D'auria, J. M., Grter, J. W., Hagberg, E., Hansen, P. G., Hardy, J. C., Hornshj, P., ... Collaboration, T. I.
(1978).
Properties of the lighest known caesium isotopes 114118Cs. NUCLEAR PHYSICS A.
301(3), 397-410.
-
Towner, I. S., & Hardy, J. C.
(1978).
Charge-dependence in superallowed beta decay: A comment. Physics Letters B.
73(1), 20-22.
-
Collaboration, T. I., Hagberg, E., Hansen, P. G., Hardy, J. C., Hornshj, P., Jonson, B., Mattsson, S., & Tidemand-Petersson, P.
(1977).
Alpha decay of neutron-deficient ytterbium isotopes and their daughters. NUCLEAR PHYSICS A.
293(1-2), 1-9.
-
Hardy, J. C., Carraz, L. C., Jonson, B., & Hansen, P. G.
(1977).
The essential decay of pandemonium: A demonstration of errors in complex beta-decay schemes. Physics Letters B.
71(2), 307-310.
-
Hagberg, E., Hansen, P. G., Hardy, J. C., Huck, A., Jonson, B., Mattsson, S., ... Walter, G.
(1977).
Decay of a Tz=-2 Nucleus: Argon-32. Physical Review Letters.
39(13), 792-795.
-
Macdonald, J. A., Hardy, J. C., Schmeing, H., Faestermann, T., Andrews, H. R., Geiger, J. S., Graham, R. L., & Jackson, K. P.
(1977).
Tz = 12-delayed proton precursors (I). The decay of 69Se. NUCLEAR PHYSICS A.
288(1), 1-22.
-
McDonald, A. B., Alexander, T. K., Beene, J. R., Hardy, J. C., Jackson, K. P., & Mak, H. B.
(1977).
Search for a 0+ level near the 8.87 MeV, 2 level of 16O. NUCLEAR PHYSICS A.
287(1), 189-194.
-
Towner, I. S., Hardy, J. C., & Harvey, M.
(1977).
Analogue symmetry breaking in superallowed fermi -decay. NUCLEAR PHYSICS A.
284(2), 269-281.
-
MacDonald, J. A., Hardy, J. C., Schmeing, H., Bray, N. C., Perry, W., Walker, R. B., & Wightman, M.
(1976).
A fast tape transport system for use with on-line separators. Nuclear Instruments and Methods.
139(C), 355-357.
-
Schmeing, H., Koslowsky, V., Wightman, M., Hardy, J. C., MacDonald, J. A., Faestermann, T., ... Graham, R. L.
(1976).
The chalk river helium jet and skimmer system. Nuclear Instruments and Methods.
139(C), 335-342.
-
Hardy, J. C., MacDonald, J. A., Schmeing, H., Faestermann, T., Andrews, H. R., Geiger, J. S., Graham, R. L., & Jackson, K. P.
(1976).
BETA-DELAYED PROTON EMISSION: A NEW SERIES OF PRECURSORS AND THE MEASUREMENT OF 10** minus **1**6 s NUCLEAR LIFETIMES. Atomic Energy of Canada Limited, AECL (Report).
-
Hardy, J. C., MacDonald, J. A., Schmeing, H., Andrews, H. R., Geiger, J. S., Graham, R. L., ... Jackson, K. P.
(1976).
Nuclear Lifetimes in the Region of 10-16 sec Measured by a New Technique. Physical Review Letters.
37(7), 459-459.
-
Hardy, J. C., MacDonald, J. A., Schmeing, H., Faestermann, T., Andrews, H. R., Geiger, J. S., Graham, R. L., & Jackson, K. P.
(1976).
A new series of beta-delayed proton precursors. Physics Letters B.
63(1), 27-30.
-
Hardy, J. C., Macdonald, J. A., Schmeing, H., Andrews, H. R., Geiger, J. S., Graham, R. L., ... Jackson, K. P.
(1976).
Nuclear Lifetimes in the Region of 10-16 sec Measured by a New Technique. Physical Review Letters.
37(3), 133-136.
-
Hardy, J. C., MacDonald, J. A., Schmeing, H., Faestermann, T., Andrews, H. R., Geiger, J. S., Graham, R. L., & Jackson, K. P.
(1976).
BETA-DELAYED PROTON EMISSION: A NEW SERIES OF PRECURSORS AND THE MEASUREMENT OF 10 -16 s NUCLEAR LIFETIMES. Atomic Energy of Canada Limited, AECL (Report).
-
Hardy, J. C., & Towner, I. S.
(1975).
Superallowed 0+ 0+ nuclear -decays and cabibbo universality. NUCLEAR PHYSICS A.
254(2), 221-240.
-
Hardy, J. C., & Towner, I. S.
(1975).
Does the Cabibbo angle sometimes vanish in nuclear -decay?. Physics Letters B.
58(3), 261-262.
-
Hardy, J. C., Schmeing, H., Geiger, J. S., & Graham, R. L.
(1975).
The superallowed -decay of 18Ne, 22Mg and 26Si. NUCLEAR PHYSICS A.
246(1), 61-75.
-
Schmeing, H., Hardy, J. C., Graham, R. L., & Geiger, J. S.
(1975).
The decay of 74Kr. NUCLEAR PHYSICS A.
242(2), 232-242.
-
Hardy, J. C., Andrews, H. R., Geiger, J. S., Graham, R. L., Macdonald, J. A., & Schmeing, H.
(1974).
Fermi Beta Decay, A>40: The Half-lives of V46, Mn50, and Co54. Physical Review Letters.
33(27), 1647-1649.
-
Schmeing, H., Graham, R. L., Hardy, J. C., & Geiger, J. S.
(1974).
A low-spin isomer in 74Br; Its half-life and decay scheme. NUCLEAR PHYSICS A.
233(1), 63-72.
-
Hardy, J. C., Ball, G. C., Geiger, J. S., Graham, R. L., Macdonald, J. A., & Schmeing, H.
(1974).
Fermi Beta Decay, A>40: The Masses of Sc42, V46, Mn50, and Co54. Physical Review Letters.
33(5), 320-323.
-
Macdonald, J. A., Cerny, J., Hardy, J. C., Harney, H. L., Bacher, A. D., & Plattner, G. R.
(1974).
Analyzing powers for two-nucleon transfer reactions in the 1 p shell. PHYSICAL REVIEW C.
9(5), 1694-1704.
-
Jackson, K. P., Hardy, J. C., Schmeing, H., Graham, R. L., Geiger, J. S., & Allen, K. W.
(1974).
A new delayed proton precursor: Chromium-45. Physics Letters B.
49(4), 341-344.
-
Hardy, J. C., Schmeing, H., Geiger, J. S., & Graham, R. L.
(1974).
The decay of 34Ar: A mirror comparison of superallowed -decay. NUCLEAR PHYSICS A.
223(1), 157-173.
-
Ball, G. C., Costa, J. G., Davies, W. G., Forster, J. S., Hardy, J. C., & McDonald, A. B.
(1974).
Use of the 14C(18O,12Be)20Ne reaction to measure the mass of 12Be. Physics Letters B.
49(1), 33-36.
-
Hardy, J. C., Schmeing, H., Benenson, W., Crawley, G. M., Kashy, E., & Nann, H.
(1974).
Fermi beta decay: The masses of Mg22, Si26, S30, and Ar34. PHYSICAL REVIEW C.
9(1), 252-257.
-
Ball, G. C., Costa, G. J., Davies, W. G., Forster, J. S., Hardy, J. C., & McDonald, A. B.
(1973).
Mass Excess and Low-Lying Level Structure of B14. Physical Review Letters.
31(6), 395-398.
-
Schmeing, H., Hardy, J. C., Graham, R. L., Geiger, J. S., & Jackson, K. P.
(1973).
A new N = Z isotope: Krypton 72. Physics Letters B.
44(5), 449-452.
-
Towner, I. S., & Hardy, J. C.
(1973).
Superallowed 0+ 0+ nuclear -decays. NUCLEAR PHYSICS A.
205(1), 33-55.
-
Goosman, D. R., Alburger, D. E., & Hardy, J. C.
(1973).
Mass and Decay of Ne25, a Tz=+52 Nuclide. PHYSICAL REVIEW C.
7(3), 1133-1143.
-
Hardy, J. C.
(1973).
Delayed proton and alpha precursors. Atomic Data and Nuclear Data Tables.
11(4), 327-349.
-
Hardy, J. C.
(1973).
Delayed proton and alpha precursors. Atomic Data and Nuclear Data Tables.
11(4), 327-349.
-
Hardy, J. C., & Alburger, D. E.
(1972).
Fermi -decay: The half-lives of 26Alm, 34Cl, 38Km and 42Sc. Physics Letters B.
42(3), 341-343.
-
Hardy, J. C., Schmeing, H., Geiger, J. S., Graham, R. L., & Towner, I. S.
(1972).
Mirror Asymmetry of Fermi Decay. Physical Review Letters.
29(15), 1027-1030.
-
Esterl, J. E., Allred, D., Hardy, J. C., Sextro, R. G., & Cerny, J.
(1972).
-Delayed Proton Decay of C9. PHYSICAL REVIEW C.
6(1), 373-375.
-
Ball, G. C., Davies, W. G., Forster, J. S., & Hardy, J. C.
(1972).
Use of the (Li7, Be7) Reaction to Measure the Mass of Na26. Physical Review Letters.
28(22), 1497-1497.
-
Ball, G. C., Davies, W. G., Forster, J. S., & Hardy, J. C.
(1972).
Use of the (Li7, Be7) Reaction to Measure the Mass of Na26. Physical Review Letters.
28(16), 1069-1071.
-
Towner, I. S., & Hardy, J. C.
(1972).
First-forbidden non-unique -transitions and mirror comparisons in light nuclei. NUCLEAR PHYSICS A.
179(2), 489-503.
-
Esterl, J. E., Sextro, R. G., Hardy, J. C., Ehrhardt, G. J., & Cerny, J.
(1971).
A high-resolution detection system for short-lived gaseous activities. Nuclear Instruments and Methods.
97(2), 229-233.
-
Hardy, J. C., Esterl, J. E., Sextro, R. G., & Cerny, J.
(1971).
Isospin Purity and Delayed-Proton Decay: Ne17 and Ar33. PHYSICAL REVIEW C.
3(2), 700-718.
-
Fleming, D. G., Hardy, J. C., & Cerny, J.
(1971).
Spin dependence in the reactions 16(p,t)14O and 16O(p, 3He)14N. NUCLEAR PHYSICS A.
162(2), 225-238.
-
Hardy, J. C., Loiseaux, J. M., Cerny, J., & Garvey, G. T.
(1971).
The reactions 11B(p, 3He)9Be and 11B(p, t)9B: Is there strong isospin mixing in mass 9?. NUCLEAR PHYSICS A.
162(3), 552-560.
-
Esterl, J. E., Hardy, J. C., Sextro, R. G., & Cerny, J.
(1970).
Beta-delayed proton decay of 13O: A violation of mirror symmetry. Physics Letters B.
33(4), 287-290.
-
Bacher, A. D., McGrath, R. L., Cerny, J., de Swiniarski, R., Hardy, J. C., & Slobodrian, R. L.
(1970).
The (3He, 6He) reaction on 6Li and 7Li. NUCLEAR PHYSICS A.
153(2), 409-412.
-
Hardy, J. C., Bacher, A. D., Plattner, G. R., Macdonald, J. A., & Sextro, R. G.
(1970).
Two-Nucleon-Transfer Reactions Induced by Polarized Protons. Physical Review Letters.
25(5), 298-302.
-
Hardy, J. C., Brunnader, H., & Cerny, J.
(1970).
T=2 and T=3 Analog States, 28A40. PHYSICAL REVIEW C.
1(2), 561-569.
-
Mendelson, R., Hardy, J. C., & Cerny, J.
(1970).
The structure of 16O and 17O(p, d)16O reaction. Physics Letters B.
31(3), 126-128.
-
McGrath, R. L., Cerny, J., Hardy, J. C., Goth, G., & Arima, A.
(1970).
Isospin-Forbidden Decay Properties of the Lowest T=2 States of Ne20, Mg24, Si28, S32, and Ca40. PHYSICAL REVIEW C.
1(1), 184-192.
-
Brunnader, H., Hardy, J. C., & Cerny, J.
(1969).
34Ar and T = 1 states in 34Cl from two-nucleon pick-up reactions. NUCLEAR PHYSICS A.
137(3), 487-499.
-
Towner, I. S., & Hardy, J. C.
(1969).
Direct two-nucleon transfer reactions and their interpretation in terms of the nuclear shell model. Advances In Physics.
18(74), 401-488.
-
Hardy, J. C., Brunnader, H., Cerny, J., & Jnecke, J.
(1969).
Isobaric Analog States and Coulomb Displacement Energies in the (1d52) Shell. Physical Review.
183(4), 854-868.
-
Hardy, J. C., Brunnader, H., & Cerny, J.
(1969).
Simple Method for Investigating the Parentage of States Using Two-Nucleon Transfer Reactions. Physical Review Letters.
22(26), 1439-1443.
-
Towner, I. S., & Hardy, J. C.
(1969).
Tables of fractional parentage coefficients in the isospin formalism for the j=3/2 and 5/2 shells. Atomic Data and Nuclear Data Tables.
6(2), 153-234.
-
Davies, W. G., Hardy, J. C., & Darcey, W.
(1969).
The 31P(t, p)33P reaction and the usefulness of double-stripping in distinguishing among shell-model calculations. NUCLEAR PHYSICS A.
128(2), 465-480.
-
Cerny, J., Mendelson, R. A., Wozniak, G. J., Esterl, J. E., & Hardy, J. C.
(1969).
New Nuclides Na19 and Al23 Observed Via The (p,He6) reaction. Physical Review Letters.
22(12), 612-615.
-
Hardy, J. C., Davies, W. G., & Darcey, W.
(1968).
91Y and the failure of the closed shell at 88Sr. NUCLEAR PHYSICS A.
121(1), 103-112.
-
Brunnader, H., Hardy, J. C., & Cerny, J.
(1968).
Carbon-10 and Mass Measurements for Light Nuclei. Physical Review.
174(4), 1247-1249.
-
McGrath, R. L., Hardy, J. C., & Cerny, J.
(1968).
The location and isospin-forbidden alpha decay of the lowest T = 2 state in 28Si. Physics Letters B.
27(7), 443-445.
-
Hardy, J. C., & Towner, I. S.
(1967).
Determination of the signs of shell model matrix elements from two nucleon stripping data. Physics Letters B.
25(10), 577-579.
-
Hardy, J. C., & Towner, I. S.
(1967).
Effects of a spin-dependent interaction potential in the DWBA analysis of two-nucleon transfer reactions. Physics Letters B.
25(2), 98-102.
-
Hardy, J. C., Skyrme, D. J., & Towner, I. S.
(1966).
Energy levels of 38Ca from the reaction 40Ca(p,t)38Ca. Physics Letters.
23(8), 487-490.
-
Verrall, R. I., Hardy, J. C., & Bell, R. E.
(1966).
An extended nomogram for log t values. Nuclear Instruments and Methods.
42(2), 258-260.
-
Hardy, J. C., Verrall, R. I., & Bell, R. E.
(1966).
Superallowed log ft values for transitions between T = 3 2 analogue states. Nuclear Physics.
81(1), 113-119.
-
Hardy, J. C., & Margolis, B.
(1965).
Log ft values and T = 32 analogue states. Physics Letters.
15(3), 276-278.
-
Hardy, J. C., Verrall, R. I., Barton, R., & Bell, R. E.
(1965).
Decay of Carbon-9. Physical Review Letters.
14(10), 376-378.
-
Hardy, J. C., & Verrall, R. I.
(1964).
Calcium-37. Physical Review Letters.
13(25), 764-766.
-
Hardy, J. C., & Verrall, R. I.
(1964).
Delayed protons following the decay of S29. Physics Letters.
13(2), 148-150.
-
McPherson, R., Hardy, J. C., & Bell, R. E.
(1964).
Delayed proton emission following the decay of Ne17. Physics Letters.
11(1), 65-67.
-
Kolos, K., Hennessy, A. M., Scielzo, N. D., Iacob, V. E., Hardy, J. C., Stoyer, M. A., ... Zhu, S.
(2021).
New approach to precisely measure gamma-ray intensities for long-lived fission products, with results for the decay of Zr-95. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
1000, 165240-165240.
-
conference paper
-
Nica, N., Hardy, J. C., Iacob, V. E., Werke, T. A., Folden, C. M., Pineda, L., & Trzhaskovskaya, M. B.
(2017).
Test of internal-conversion theory with a measurement in Cd-111. EPJ Web of Conferences.
10004-10004.
-
Hardy, J. C., & Towner, I. S.
(2016).
V
ud from Nuclear Beta Decays. Proceedings of Science.
-
Hardy, J. C., Towner, I. S., Park, H. I., Iacob, V. E., Chen, L., Horvat, V., Nica, N., & Bencomo, M.
(2015).
Testing CVC and CKM Unitarity via superallowed nuclear beta decay. EPJ Web of Conferences.
01001-01001.
-
Hardy, J. C., & Towner, I. S.
(2013).
Measurement of V-ud with 0(+) -> 0(+) nuclear beta decays. AIP Conference Proceedings.
109-113.
-
Hardy, J. C.
(2012).
Superallowed Nuclear Beta Decay: Precision Measurements for Basic Physics. AIP Conference Proceedings.
106-114.
-
Hardy, J. C., Goodwin, J. R., & Iacob, V. E.
(2012).
Do radioactive half-lives vary with the Earth-to-Sun distance?. APPLIED RADIATION AND ISOTOPES.
1931-1933.
-
Hardy, J. C., & Towner, I. S.
(2012).
Superallowed 0(+) -> 0(+) beta-decay from T-z =-1 sd-shell nuclei. Journal of Physics : Conference Series.
012006-012006.
-
Trache, L., Banu, A., Hardy, J. C., Iacob, V. E., McCleskey, M., Roeder, B. T., ... Pollacco, E.
(2012).
Decay spectroscopy for nuclear astrophysics: beta- and beta-delayed proton decay. Journal of Physics : Conference Series.
012058-012058.
-
Towner, I. S., & Hardy, J. C.
(2011).
V
ud from nuclear decays
-
Saastamoinen, A., Trache, L., Banu, A., Bentley, M. A., Davinson, T., Hardy, J. C., ... Aysto, J.
(2011).
Study of excited states of S-31 through beta-decay of Cl-31 for nucleosynthesis in ONe novae. AIP Conference Proceedings.
71-74.
-
Saastamoinen, A., Trache, L., Banu, A., Bentley, M. A., Davinson, T., Hardy, J. C., ... yst, J.
(2010).
-delayed proton decay of23Al and nova nucleosynthesis. Proceedings of Science.
-
Hardy, J. C., & Towner, I. S.
(2010).
Superallowed nuclear beta decay: symmetry breaking, CVC and CKM unitarity. NUCLEAR PHYSICS A.
138C-142C.
-
Saastamoinen, A., Trache, L., Banu, A., Bentley, M. A., Davinson, T., Hardy, J. C., ... Stoica, S.
(2010).
decay of 23Al and nova nucleosynthesis. AIP Conference Proceedings.
411-414.
-
Tribble, R. E., Al-Abdullah, T., Alharbi, A., Aysto, J., Banu, A., Burjan, V., ... Zhai, Y.
(2010).
Astrophysical Reaction Rates Obtained By Indirect Techniques. AIP Conference Proceedings.
239-+.
-
Hardy, J. C., Goodwin, J. R., Golovko, V. V., & Iacob, V. E.
(2010).
Tests of nuclear half-lives as a function of the host medium and temperature: refutation of recent claims. APPLIED RADIATION AND ISOTOPES.
1550-1553.
-
Saastamoinen, A., Trache, L., Banu, A., Bentley, M. A., Davinson, T., Eronen, T., ... Aysto, J.
(2010).
Studies of astrophysically interesting nucleus Al-23. Journal of Physics : Conference Series.
012010-012010.
-
Saastamoinen, A., Trache, L., Banu, A., Bentley, M. A., Davinson, T., Hardy, J. C., ... Aysto, J.
(2010).
beta-decay of Al-23 and nova nucleosynthesis. AIP Conference Proceedings.
411-+.
-
Hardy, J. C., & Towner, I. S.
(2009).
The Status of V(ud). AIP Conference Proceedings.
355-358.
-
Hardy, J. C., & Towner, I. S.
(2009).
SUPERALLOWED BETA DECAY: THE ROLE OF NUCLEAR STRUCTURE IN STANDARD-MODEL TESTS. ACTA PHYSICA POLONICA B.
675-684.
-
Goldberg, V. Z., Rogachev, G. V., Johnson, E. D., Brown, S., Miller, L. E., AlAbdullah, T., ... Zhai, Y.
(2009).
cluster structure in light NZ nuclei. AIP Conference Proceedings.
213-218.
-
Towner, I. S., & Hardy, J. C.
(2009).
NEW CALCULATION OF THE ISOSPIN-SYMMETRY BREAKING CORRECTION TO SUPERALLOWED FERMI BETA DECAY. 51-59.
-
Hardy, J. C., & Towner, I. S.
(2009).
SUPERALLOWED NUCLEAR BETA DECAY: RECENT RESULTS AND THEIR IMPACT ON V-ud. 41-50.
-
Trache, L., Banu, A., Hardy, J. C., Iacob, V. E., McCleskey, M., Simmons, E., ... Roeder, B.
(2008).
-delayed proton decay of proton-rich nuclei 23Al and 31Cl and explosive H-burning in classical novae. Proceedings of Science.
-
Hardy, J. C., Nica, N., Iacob, V. E., Balonek, C., & Trzhaskovskaya, M. B.
(2008).
Precise tests of internal-conversion theory. APPLIED RADIATION AND ISOTOPES.
701-704.
-
Zhai, Y., Trache, L., Tribble, R., Liu, Y., Shi, C., Papanikolaou, N., ... Tabacaru, G.
(2008).
SUGGT240: New Method of An HPGe Detector Precise Efficiency Calibration with Experimental Measurements and Monte Carlo Simulations. Medical Physics.
2780-2780.
-
Hardy, J. C.
(2008).
Superallowed nuclear beta decay: A window on the weak interaction. AIP Conference Proceedings.
119-127.
-
Zganjar, E. F., Achtzehn, T., Albers, D., Andreoiu, C., Andreyev, A. N., Austin, R., ... Wood, J. L.
(2007).
Superallowed beta decay studies at TRIUMF - Nuclear structure and fundamental symmetries. ACTA PHYSICA POLONICA B.
1179-1194.
-
Clark, J. A., Parikh, A., Buchinger, F., Caggiano, J. A., Crawford, J. E., Deibel, C., ... Zhou, Z.
(2006).
Mass measurements of 22 Mg and 26 Si via (p, t) reactions and Penning traps. Proceedings of Science.
-
Hardy, J. C.
(2006).
The status of V-ud. AIP Conference Proceedings.
309-313.
-
Hardy, J. C., Nica, N., Iacob, V. E., Trzhaskovskaya, M. B., & Helmer, R. G.
(2006).
Test of internal-conversion theory with precise gamma- and X-ray spectroscopy. APPLIED RADIATION AND ISOTOPES.
1392-1395.
-
Iacob, V. E., Hardy, J. C., Gagliardi, C. A., Mayes, V. E., Nica, N., Tabacaru, G., Trache, L., & Tribble, R. E.
(2006).
Precise half-life measurement of (34)AR, a superallowed beta(+) emitter. 387-+.
-
Hardy, J. C.
(2006).
CVC tests and CKM unitarity. ACTA PHYSICA POLONICA B.
77-86.
-
Clark, J. A., Barber, R. C., Blank, B., Boudreau, C., Buchinger, F., Crawford, J. E., ... Zhou, Z.
(2005).
Investigating the rp-process with the Canadian Penning trap mass spectrometer. European Physical Journal A.
629-632.
-
Hardy, J. C., & Towner, I. S.
(2005).
Superallowed 0(+) -> 0(+) beta decay and CKM unitarity: A new overview including more exotic nuclei. European Physical Journal A.
695-698.
-
Hardy, J. C.
(2005).
Standard-model tests with superallowed beta decay: Nuclear data applied to fundamental physics. AIP Conference Proceedings.
678-683.
-
Hardy, J. C.
(2005).
CVC tests and CKM unitarity. NUCLEAR PHYSICS A.
101C-108C.
-
Helmer, R. G., Nica, N., Hardy, J. C., & Iacob, V. E.
(2004).
Precise efficiency calibration of an HPGe detector up to 3.5 MeV, with measurements and Monte Carlo calculations. APPLIED RADIATION AND ISOTOPES.
173-177.
-
Iacob, V. E., Hardy, J. C., Sanchez-Vega, M., Neilson, R. G., Azhari, A., Gagliardi, C. A., ... Tribble, R. E.
(2004).
Precise ft-value measurement for the superallowed 0(+) -> 0(+) beta decay of Mg-22. AIP Conference Proceedings.
244-251.
-
Clark, J. A., Barber, R. C., Blank, B., Boudreau, C., Buchinger, F., Crawford, J. E., ... Zhou, Z.
(2004).
Precise mass measurements of astrophysical interest made with the Canadian Penning trap mass spectrometer. NUCLEAR PHYSICS A.
342C-346C.
-
Clark, J., Barber, R. C., Boudreau, C., Buchinger, F., Crawford, J. E., Gulick, S., ... Zhou, Z.
(2003).
Improvements in the injection system of the Canadian Penning trap mass spectrometer. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms.
487-491.
-
Hardy, J. C.
(2003).
New results in superallowed nuclear beta decay. AIP Conference Proceedings.
184-187.
-
Hardy, J. C., & Towner, I. S.
(2002).
Superallowed 0(+) -> 0(+) beta-decay and CKM unitarity - Recent results and future prospects. European Physical Journal A.
223-227.
-
Zganjar, E. F., Piechaczek, A., Ball, G. C., Bricault, P., D'Auria, J. M., Hardy, J. C., ... Wood, J. L.
(2002).
Tests of the standard model from superallowed Fermi beta-decay studies: The (74)Rb beta-decay. European Physical Journal A.
229-232.
-
Tribble, R. E., Azhari, A., Gagliardi, C. A., Hardy, J. C., Mukhamedzhanov, A., Tang, X., Trache, L., & Yennello, S. J.
(2002).
Radioactive beams at Texas A&M University. NUCLEAR PHYSICS A.
278C-281C.
-
Hardy, J. C., Iacob, V. E., Sanchez-Vega, M., Effinger, R. T., Lipnik, P., Mayes, V. E., Willis, D. K., & Helmer, R. G.
(2002).
Precise efficiency calibration of an HPGe detector: source measurements and Monte Carlo calculations with sub-percent precision. APPLIED RADIATION AND ISOTOPES.
65-69.
-
Savard, G., Barber, R. C., Boudreau, C., Buchinger, F., Caggiano, J., Clark, J., ... Vaz, J.
(2001).
The Canadian Penning Trap spectrometer at argonne. Hyperfine Interactions.
223-230.
-
Quraan, M. A., Gaponenko, A., Green, P., Kitching, P., MacDonald, R., Price, G., ... Stanislaus, T.
(2001).
A precision measurement of muon decay. International Journal of Modern Physics A: particles and fields; gravitation; cosmology; nuclear physics.
296-298.
-
Davydov, Y., Andersson, W., Comyn, M., Depommier, P., Doornbos, J., Faszer, W., ... Wright, D.
(2001).
Drift chambers for a precision measurement of the Michel parameters in muon decay. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
68-70.
-
Rodning, N. L., Andersson, W., Davydov, Y., Depommier, P., Doornbos, J., Faszer, W., ... Wright, D.
(2001).
TWIST - The TRIUMF weak interaction symmetry test - The Michel parameters from mu(+) decay. Nuclear Physics B - Proceedings Supplements.
247-254.
-
Hardy, J. C., & Towner, I. S.
(2001).
Standard-model tests with superallowed beta-decay: An important application of very precise mass measurements. Hyperfine Interactions.
115-126.
-
Hardy, J. C.
(2000).
Beta-delayed proton emission. AIP Conference Proceedings.
229-238.
-
Quraan, M. A., Amaudruz, P., Andersson, W., Comyn, M., Davydov, Y., Depommier, P., ... Wright, D.
(2000).
A precision measurement of muon decay. NUCLEAR PHYSICS A.
903C-906C.
-
Iacob, V. E., Burch, R., Hardy, J. C., Lipnik, P., & Trache, L.
(1999).
Fast PC & CAMAC based multi-parametric acquisition system. 153-155.
-
Hardy, J. C., & Towner, I. S.
(1999).
Superallowed fermi beta decay and Coulomb mixing in nuclei. AIP Conference Proceedings.
129-140.
-
Hardy, J. C., & Towner, I. S.
(1998).
Superallowed Fermi beta decay. AIP Conference Proceedings.
733-738.
-
Hardy, J. C., & Towner, I. S.
(1984).
GAMOW-TELLER STRENGTH DISTRIBUTION IN THE beta -DECAY OF EXOTIC NUCLEI. Journal de Physique. Colloque.
417-431.
-
Nica, N., Hardy, J. C., Iacob, V. E., Werke, T. A., Folden, C. M., Pineda, L., & Trzhaskovskaya, M. B.
(2017).
Test of internal-conversion theory with a measurement in Cd-111. EPJ Web of Conferences.
10004-10004.
-
report
-
Hardy, J. C., Geiger, J. S., & Schmeing, H.
(1994).
At energy can ltd AECL rep. Atomic Energy of Canada Limited, AECL (Report).
1-1.
-
Hardy, J. C., Horn, D., & Ward, D.
(1984).
TASCC - THE NEXT FIVE YEARS. Atomic Energy of Canada Limited, AECL (Report).
-
Hardy, J. C., Geiger, J. S., & Schmeing, H.
(1994).
At energy can ltd AECL rep. Atomic Energy of Canada Limited, AECL (Report).
1-1.
Research
co-principal investigator on
Teaching
teaching activities
- PHYS285 Directed Studies Instructor
- PHYS291 Research Instructor
- PHYS485 Directed Studies Instructor
- PHYS491 Hnr-research Instructor
- PHYS685 Directed Studies Instructor
- PHYS691 Research Instructor
Works By Students
chaired theses and dissertations
-
Bencomo, Miguel (2018-10). Superallowed ?-Decay Branching Ratio Measurement of 26Si.
-
Goodwin, John 1953- (2013-01). Can Environmental Factors Affect Half-Life in Beta-Decay? An Analysis.
-
Park, Hyo-In (2012-10). High-Precision Measurements of the Superallowed Beta+ Decays of 38Ca and 46V.
Background
education and training
- Ph.D. in Nuclear Physics 1965
- M.Sc. in Nuclear Physics 1963
- B.Sc. in Mathematics and Physics 1961
awards and honors
Contact
first name
- John
has last name
- Hardy
mailing address
-
Texas A&M University
Physics And Astronomy
3366 TAMU
College Station, TX 77843-3366
USA
Other
- hardy@tamu.edu