# Search for $B_ s^0 \to \mu^+mu^-$ and $B^0 \to \mu^+mu^-$ Decays with 2fb$^{-1}$ of $p\bar{p}$ Collisions

Abstract : We have performed a search for Bs-->mu+mu- and Bd-->mu+mu- decays in ppbar collisions at sqrt(s) = 1.96TeV using 2fb-1 of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron Collider. The observed number of Bs and Bd candidates is consistent with background expectations. The resulting upper limits on the branching fractions are B(Bs-->mu+mu-) < 5.8X10^-8 and B(Bd-->mu+mu-) < 1.8X10^-8 at 95% C.L.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00196617
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Submitted on : Thursday, December 13, 2007 - 10:52:02 AM
Last modification on : Wednesday, September 15, 2021 - 2:56:02 PM

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### Citation

T. Aaltonen, J. Adelman, T. Akimoto, M.G. Albrow, B. Alvarez Gonzalez, et al.. Search for $B_ s^0 \to \mu^+mu^-$ and $B^0 \to \mu^+mu^-$ Decays with 2fb$^{-1}$ of $p\bar{p}$ Collisions. Physical Review Letters, American Physical Society, 2008, 100, pp.101802. ⟨10.1103/PhysRevLett.100.101802⟩. ⟨in2p3-00196617⟩

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