Observation of Psi(3770)-->gammachi(c1)-->gammagammaJ/Psi. Academic Article uri icon

abstract

  • From e(+)e(-) collision data acquired with the CLEO detector at the Cornell Electron Storage Ring, we observe the non-DD(_) decay Psi(3770))-->gammachi(c1) with a statistical significance of 6.6 standard deviations, using the two-photon cascades to J/Psi and J/Psi-->l(+)l(-). We determine sigma(e(=)e(-)-->Psi(3770))xBeta(Psi(3770)-->gammachi(c1))=(18.0 +/- 3.3 +/- 2.5) pb and branching fraction Beta(Psi(3770)-->gammachi(c1)=(2.8 +/- 0.5+/-0.4) x 10(-3). We set 90% C.L. upper limits for the transition to chi(c2) (chi(c0)): sigma x Beta<5.7 pb (<282 pb) and Beta<0.9 x 10(-3) (<44 x 10(-3)). We also determine Gamma(Psi(3770)gammachi(c1))/Gamma(Psi(3770)-->pi(+)pi(-)J/Psi)=1.5 +/- 0.3 +/- 0.3 (>1.0 at 90% C.L.), which bears upon the interpretation of X(3872).

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Coan, T. E., Gao, Y. S., Liu, F., Artuso, M., Boulahouache, C., Blusk, S., ... CLEO Collaboration.

citation count

  • 35

complete list of authors

  • Coan, TE||Gao, YS||Liu, F||Artuso, M||Boulahouache, C||Blusk, S||Butt, J||Dorjkhaidav, O||Li, J||Menaa, N||Mountain, R||Nandakumar, R||Randrianarivony, K||Redjimi, R||Sia, R||Skwarnicki, T||Stone, S||Wang, JC||Zhang, K||Csorna, SE||Bonvicini, G||Cinabro, D||Dubrovin, M||Lincoln, A||Briere, RA||Chen, GP||Chen, J||Ferguson, T||Tatishvili, G||Vogel, H||Watkins, ME||Rosner, JL||Adam, NE||Alexander, JP||Berkelman, K||Cassel, DG||Crede, V||Duboscq, JE||Ecklund, KM||Ehrlich, R||Fields, L||Galik, RS||Gibbons, L||Gittelman, B||Gray, R||Gray, SW||Hartill, DL||Heltsley, BK||Hertz, D||Jones, CD||Kandaswamy, J||Kreinick, DL||Kuznetsov, VE||Mahlke-Krüger, H||Meyer, TO||Onyisi, PUE||Patterson, JR||Peterson, D||Phillips, EA||Pivarski, J||Riley, D||Ryd, A||Sadoff, AJ||Schwarthoff, H||Shi, X||Shepherd, MR||Stroiney, S||Sun, WM||Urner, D||Wilksen, T||Weaver, KM||Weinberger, M||Athar, SB||Avery, P||Breva-Newell, L||Patel, R||Potlia, V||Stoeck, H||Yelton, J||Rubin, P||Cawlfield, C||Eisenstein, BI||Gollin, GD||Karliner, I||Kim, D
  • Coan, TE||Gao, YS||Liu, F||Artuso, M||Boulahouache, C||Blusk, S||Butt, J||Dorjkhaidav, O||Li, J||Menaa, N||Mountain, R||Nandakumar, R||Randrianarivony, K||Redjimi, R||Sia, R||Skwarnicki, T||Stone, S||Wang, JC||Zhang, K||Csorna, SE||Bonvicini, G||Cinabro, D||Dubrovin, M||Lincoln, A||Briere, RA||Chen, GP||Chen, J||Ferguson, T||Tatishvili, G||Vogel, H||Watkins, ME||Rosner, JL||Adam, NE||Alexander, JP||Berkelman, K||Cassel, DG||Crede, V||Duboscq, JE||Ecklund, KM||Ehrlich, R||Fields, L||Galik, RS||Gibbons, L||Gittelman, B||Gray, R||Gray, SW||Hartill, DL||Heltsley, BK||Hertz, D||Jones, CD||Kandaswamy, J||Kreinick, DL||Kuznetsov, VE||Mahlke-Krüger, H||Meyer, TO||Onyisi, PUE||Patterson, JR||Peterson, D||Phillips, EA||Pivarski, J||Riley, D||Ryd, A||Sadoff, AJ||Schwarthoff, H||Shi, X||Shepherd, MR||Stroiney, S||Sun, WM||Urner, D||Wilksen, T||Weaver, KM||Weinberger, M||Athar, SB||Avery, P||Breva-Newell, L||Patel, R||Potlia, V||Stoeck, H||Yelton, J||Rubin, P||Cawlfield, C||Eisenstein, BI||Gollin, GD||Karliner, I||Kim, D||Lowrey, N||Naik, P||Sedlack, C||Selen, M||White, EJ||Williams, J||Wiss, J||Asner, DM||Edwards, KW||Besson, D||Pedlar, TK||Cronin-Hennessy, D||Gao, KY||Gong, DT||Hietala, J||Kubota, Y||Klein, T||Lang, BW||Li, SZ||Poling, R||Scott, AW||Smith, A||Dobbs, S||Metreveli, Z||Seth, KK||Tomaradze, A||Zweber, P||Ernst, J||Severini, H||Dytman, SA||Love, W||Mehrabyan, S||Mueller, JA||Savinov, V||Li, Z||Lopez, A||Mendez, H||Ramirez, J||Huang, GS||Miller, DH||Pavlunin, V||Sanghi, B||Shipsey, IPJ||Adams, GS||Anderson, M||Cummings, JP||Danko, I||Napolitano, J||He, Q||Muramatsu, H||Park, CS||Thorndike, EH

publication date

  • May 2006