Observation of the decay Omega(0)(c)-->Omega(-)e(+)nu(e). Academic Article uri icon

abstract

  • Using the CLEO detector at the Cornell Electron Storage Ring we have observed the Omega(0)(c) (css ground state) in the decay Omega(0)(c)-->Omega(-)e(+)nu(e). We find a signal of 11.4+/-3.8(stat) events. The probability that we have observed a background fluctuation is 7.6x10(-5). We measure B(Omega(0)(c)-->Omega(-)e(+)nu(e)).sigma(e(+)e(-)-->Omega(0)(c)X)=(42.2+/-14.1(stat)+/-5.7(syst)) fb and R=[Gamma(Omega(0)(c)-->Omega(-)pi(+))]/[Gamma(Omega(0)(c)-->Omega(-)enu(e))]=00.41+/-0.19(stat)+/-0.04(syst). This is the first statistically significant observation of an individual decay mode of the Omega(0)(c) in e(+)e(-) annihilation and the first example of a baryon decaying via beta emission, where no quarks from the first generation participate in the reaction.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Ammar, R., Besson, D., Zhao, X., Anderson, S., Frolov, V. V., Kubota, Y., ... Edwards, K. W.

complete list of authors

  • Ammar, R||Besson, D||Zhao, X||Anderson, S||Frolov, VV||Kubota, Y||Lee, SJ||Li, SZ||Poling, R||Smith, A||Stepaniak, CJ||Urheim, J||Ahmed, S||Alam, MS||Jian, L||Saleem, M||Wappler, F||Eckhart, E||Gan, KK||Gwon, C||Hart, T||Honscheid, K||Hufnagel, D||Kagan, H||Kass, R||Pedlar, TK||Thayer, JB||von Toerne, E||Wilksen, T||Zoeller, MM||Muramatsu, H||Richichi, SJ||Severini, H||Skubic, P||Dytman, SA||Nam, S||Savinov, V||Chen, S||Hinson, JW||Lee, J||Miller, DH||Pavlunin, V||Shibata, EI||Shipsey, IPJ||Cronin-Hennessy, D||Lyon, AL||Park, CS||Park, W||Thorndike, EH||Coan, TE||Gao, YS||Liu, F||Maravin, Y||Narsky, I||Stroynowski, R||Artuso, M||Boulahouache, C||Bukin, K||Dambasuren, E||Mountain, R||Skwarnicki, T||Stone, S||Wang, JC||Mahmood, AH||Csorna, SE||Danko, I||Xu, Z||Bonvicini, G||Cinabro, D||Dubrovin, M||McGee, S||Bornheim, A||Lipeles, E||Pappas, SP||Shapiro, A||Sun, WM||Weinstein, AJ||Masek, G||Paar, HP||Mahapatra, R||Briere, RA||Chen, GP||Ferguson, T||Tatishvili, G||Vogel, H||Adam, NE||Alexander, JP||Berkelman, K||

publication date

  • January 1, 2002 11:11 AM