A search for the decays B0s to →μ+μ− and B0 to→μ+μ− is performed with 0.37 fb−1 √ of pp collisions at sqrt(s) = 7 TeV collected by the LHCb experiment in 2011. The upper limits on the branching fractions are B(B0s to μ+μ−) < 1.6 × 10−8 and B(B0 to→μ+μ−) < 3.6 × 10−9 at 95% confidence level. A combination of these results with the LHCb limits obtained with the 2010 dataset leads to B(B0s to μ+μ−) < 1.4 × 10−8 and B(B0 to→μ+μ−) < 3.2×10−9 at 95% confidence level.
Search for the rare decays Bs0 to μ+μ− and B0 to μ+μ−
CARDINALE, ROBERTA;FONTANELLI, FLAVIO;PATRIGNANI, CLAUDIA;PETROLINI, ALESSANDRO;SANNINO, MARIO;
2012-01-01
Abstract
A search for the decays B0s to →μ+μ− and B0 to→μ+μ− is performed with 0.37 fb−1 √ of pp collisions at sqrt(s) = 7 TeV collected by the LHCb experiment in 2011. The upper limits on the branching fractions are B(B0s to μ+μ−) < 1.6 × 10−8 and B(B0 to→μ+μ−) < 3.6 × 10−9 at 95% confidence level. A combination of these results with the LHCb limits obtained with the 2010 dataset leads to B(B0s to μ+μ−) < 1.4 × 10−8 and B(B0 to→μ+μ−) < 3.2×10−9 at 95% confidence level.File in questo prodotto:
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