| Observation of Bs production at the Y(5S) resonance. | |
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MedLine Citation:
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PMID: 16486562 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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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 . |
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Authors:
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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 Berkelman; D 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; |
Publication Detail:
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Type: Journal Article Date: 2006-01-18 |
Journal Detail:
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Title: Physical review letters Volume: 96 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2006 Jan |
Date Detail:
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Created Date: 2006-02-20 Completed Date: 2006-05-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 022002 Citation Subset: - |
Affiliation:
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Wayne State University, Detroit, Michigan 48202, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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