Abazov, V. M. ; Mondal, N. K. ; et., al (2007) Study of the decay Bs0→Ds(*) Ds(*) Physical Review Letters, 99 (24). 241801_1-241801_7. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v99/i24/e241801
Related URL: http://dx.doi.org/10.1103/PhysRevLett.99.241801
Abstract
We report a study of the decay Bs0→Ds(*) Ds(*)using a data sample corresponding to 1.3 fb-1 of integrated luminosity collected by the D0 experiment in 2002-2006 during run II of the Fermilab Tevatron collider. One Ds(*) meson was partially reconstructed in the decay Ds→ø μ ν, and the other Ds(*) meson was identified using the decay Ds→ ø π where no attempt was made to distinguish Ds and Ds* states. For the branching fraction Br(Bs0→Ds(*)Ds(*)) we obtain a 90% C.L. range [0.002,0.080] and central value 0.039-0.017+0.019(stat)-0.015+0.016(syst). This was subsequently used to make the most precise estimate of the width difference Δ ΓsCP in the Bs0-B‾s 0 system: ΔΓsCP/Γs=0.079 -0.035+0.038(stat)-0.030+0.031(syst).
Item Type: | Article |
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Source: | Copyright of this article belongs to The American Physical Society. |
ID Code: | 66891 |
Deposited On: | 28 Oct 2011 03:52 |
Last Modified: | 28 Oct 2011 03:52 |
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