Observation of Bs production at the Y(5S) resonance. Academic Article uri icon

abstract

  • Using the CLEO detector at the Cornell Electron Storage Ring, we have observed the Bs meson in e+e- annihilation at the Y(5S) resonance. We find 14 candidates consistent with Bs decays into final states with a J/psi or a Ds(*)- . The probability that we have observed a background fluctuation is less than 8 x 10(-10) . We have established that at the energy of the Y(5S) resonance Bs production proceeds predominantly through the creation of Bs*Bs* pairs. We find sigma(e+e- --> Bs*Bs*) = [0.11(-0.03))(+0.04)(stat) +/- 0.02(syst)]nb , and set the following limits: sigma(e+e- --> BsBs)/ sigma(e+ e- --> Bs*Bs*) <0.16 and [sigma(e+e- --> BsBs*) + sigma(e+e- --> Bs*Bs)]/sigma(e+e- -->Bs*Bs*) < 0.16 (90% C.L.). The mass of the Bs* meson is measured to be M(Bs*) = [5.414+/- 0.001(stat) +/- 0.003(syst)] GeV/c2 .

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Bonvicini, G., Cinabro, D., Dubrovin, M., Lincoln, A., Bornheim, A., Pappas, S. P., ... CLEO Collaboration.

citation count

  • 25

complete list of authors

  • Bonvicini, G||Cinabro, D||Dubrovin, M||Lincoln, A||Bornheim, A||Pappas, SP||Weinstein, AJ||Asner, DM||Edwards, KW||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||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||Besson, D||Pedlar, TK||Cronin-Hennessy, D||Gao, KY||Gong, DT||Hietala, J||Kubota, Y||Klein, T||Lang, B
  • Bonvicini, G||Cinabro, D||Dubrovin, M||Lincoln, A||Bornheim, A||Pappas, SP||Weinstein, AJ||Asner, DM||Edwards, KW||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||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||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||Arms, K||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||Coan, TE||Gao, YS||Liu, F||Maravin, Y||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

publication date

  • January 2006