Lowest excited states of
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An excitation function for resonance elastic scattering of p+N12 was measured in the center of mass energy range of 0.8-2.7 MeV. Measurements were performed using inverse kinematics and the thick-target techniques. The data were analyzed in the framework of the R-matrix formalism. A definitive spin and parity assignment was possible for the first excited state of O13 at an excitation energy of 2.69 MeV as J=12+. An indication of the presence of a new level in O13 at an excitation energy of 3.29 MeV with tentative spin-parity assignment J=12- or 32- was obtained. We evaluate the impact of this measurement on the reaction rate of N12(p,)O13 for nucleosynthesis in low-metallicity stars. 2007 The American Physical Society.
author list (cited authors)
Skorodumov, B. B., Rogachev, G. V., Boutachkov, P., Aprahamian, A., Goldberg, V. Z., Mukhamedzhanov, A., ... Woehr, A.
complete list of authors
Skorodumov, BB||Rogachev, GV||Boutachkov, P||Aprahamian, A||Goldberg, VZ||Mukhamedzhanov, A||Almaraz, S||Amro, H||Becchetti, FD||Brown, S||Chen, Y||Jiang, H||Kolata, JJ||Lamm, LO||Quinn, M||Woehr, A