A search for the non-resonant decays Bs 0 → μ+μ−μ+μ− and B0 → μ+μ−μ+μ− is presented. The measurement is performed using the full Run 1 data set collected in proton-proton collisions by the LHCb experiment at the LHC. The data correspond to integrated luminosities of 1 and 2 fb−1 collected at centre-of-mass energies of 7 and 8 TeV, respectively. No signal is observed and upper limits on the branching fractions of the non-resonant decays at 95% confidence level are determined to beℬ(Bs0→μ+μ−μ+μ−)<2.5×10−9,[Figure not available: see fulltext.] © 2017, The Author(s).
Search for decays of neutral beauty mesons into four muons
CALABRESE, Roberto;Capriotti, L.;CORVO, Marco;FIORINI, Massimiliano;LUPPI, Eleonora;PAPPALARDO, Luciano Libero;SIDDI, Benedetto Gianluca;TOMASSETTI, Luca;
2017
Abstract
A search for the non-resonant decays Bs 0 → μ+μ−μ+μ− and B0 → μ+μ−μ+μ− is presented. The measurement is performed using the full Run 1 data set collected in proton-proton collisions by the LHCb experiment at the LHC. The data correspond to integrated luminosities of 1 and 2 fb−1 collected at centre-of-mass energies of 7 and 8 TeV, respectively. No signal is observed and upper limits on the branching fractions of the non-resonant decays at 95% confidence level are determined to beℬ(Bs0→μ+μ−μ+μ−)<2.5×10−9,[Figure not available: see fulltext.] © 2017, The Author(s).File in questo prodotto:
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