Observation of Bs Production at the Υ(5S) Resonance

G. Bonvicini, D. Cinabro, M. Dubrovin, A. Lincoln, A. Bornheim, S. P. Pappas, A. J. Weinstein, D. M. Asner, K. W. Edwards, R. A. Briere, G. P. Chen, J. Chen, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, J. L. Rosner, N. E. Adam, J. P. Alexander, K. BerkelmanD. G. Cassel, V. Crede, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, L. Fields, L. Gibbons, B. Gittelman, R. Gray, S. W. Gray, D. L. Hartill, B. K. Heltsley, D. Hertz, C. D. Jones, J. Kandaswamy, D. L. Kreinick, V. E. Kuznetsov, H. Mahlke-Krüger, T. O. Meyer, P. U.E. Onyisi, J. R. Patterson, D. Peterson, E. A. Phillips, J. Pivarski, D. Riley, A. Ryd, A. J. Sadoff, H. Schwarthoff, X. Shi, M. R. Shepherd, S. Stroiney, W. M. Sun, D. Urner, T. Wilksen, K. M. Weaver, M. Weinberger, S. B. Athar, P. Avery, L. Breva-Newell, R. Patel, V. Potlia, H. Stoeck, J. Yelton, P. Rubin, C. Cawlfield, B. I. Eisenstein, G. D. Gollin, I. Karliner, D. Kim, N. Lowrey, P. Naik, C. Sedlack, M. Selen, E. J. White, J. Williams, J. Wiss, D. Besson, T. K. Pedlar, D. Cronin-Hennessy, K. Y. Gao, D. T. Gong, J. Hietala, Y. Kubota, T. Klein, B. W. Lang, S. Z. Li, R. Poling, A. W. Scott, A. Smith, S. Dobbs, Z. Metreveli, K. K. Seth, A. Tomaradze, P. Zweber, J. Ernst, K. Arms, H. Severini, S. A. Dytman, W. Love, S. Mehrabyan, J. A. Mueller, V. Savinov, Z. Li, A. Lopez, H. Mendez, J. Ramirez, G. S. Huang, D. H. Miller, V. Pavlunin, B. Sanghi, I. P.J. Shipsey, G. S. Adams, M. Anderson, J. P. Cummings, I. Danko, J. Napolitano, Q. He, H. Muramatsu, C. S. Park, E. H. Thorndike, T. E. Coan, Y. S. Gao, F. Liu, Y. Maravin, M. Artuso, C. Boulahouache, S. Blusk, J. Butt, O. Dorjkhaidav, J. Li, N. Menaa, R. Mountain, R. Nandakumar, K. Randrianarivony, R. Redjimi, R. Sia, T. Skwarnicki, S. Stone, J. C. Wang, K. Zhang, S. E. Csorna

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

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

Original languageEnglish (US)
Article number022002
JournalPhysical review letters
Volume96
Issue number2
DOIs
StatePublished - Jan 20 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

Fingerprint

Dive into the research topics of 'Observation of Bs Production at the Υ(5S) Resonance'. Together they form a unique fingerprint.

Cite this