Search for Bs,d->mumu at LHCb with 300 pb-1

2011/10/11 by Bettler, Marc-Olivier
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.1110.2411

Abstract

A search for the Bs->mumu and Bd->mumu decays is performed in ~300 pb-1 of pp collisions at sqrt(s) = 7 TeV collected by the LHCb experiment at the Large Hadron Collider at CERN. The measured limit on the branching fraction of the Bs->mumu decay is BR(Bsmumu) < 1.6 10^-8 at 95% confidence level, while that of the Bd->mumu decay is BR(Bd->mumu) < 5.1 x 10^-9 at 95% confidence level. A combination with the 2010 dataset of LHCb yields a limit of BR(Bs->mumu) <1.5 x 10^-8 at 95% confidence level.

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