Bs0 Decays at Belle

Details Bs0 Decays at Belle Bs0 Decays at Belle

2010-09-14

arxiv.org/abs/1009.2605v2

PoS FPCP2010:015,2010

Physics

High Energy Physics

High Energy Physics - Experiment

10 pages, 7 figures. To appear in the proceedings of the "Flavor Physics and CP Violation 2010" (FPCP2010) conference, May 25-

Scientific paper

The large data sample recorded with the Belle detector at the Y(5S) energy provides a unique opportunity to study the poorly-known Bs0 meson. Several analyses, made with a data sample representing an integrated luminosity of 23.6 /fb, are presented. We report the study of the large-signal Bs0 -> Ds(*)- h+ (h+ = pi+ or rho+) decays including the first observations of Bs0 -> Ds*- pi+ and Bs0 -> Ds(*)- rho+. In addition, several results on CP-eigenstate Bs0 decays are described. These include the study of the Bs0 -> J/psi eta(') and Bs0 -> J/psi f0(980) decays, the charmless Bs0 -> K+ K-, Bs0 -> pi+ pi pi- and Bs0 -> Kshort Kshort decays and the simultaneous fit of the three Bs0 -> Ds(*)Ds(*) modes from which Delta(Gamma_s)/Gamma_s is extracted. The preliminary measurement of B(Bs0 -> J/psi f0(980))<1.63x10^-4 (at 90% C.L.) is presented for the first time.

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