A search for non-resonant D+(s)→π+μ+μ− and D+(s)→π−μ+μ+ decays is performed using proton–proton collision data, corresponding to an integrated luminosity of 1.0 fb−1, at s√=7TeV recorded by the LHCb experiment in 2011. No signals are observed and the 90% (95%) confidence level (CL) limits on the branching fractions are found to be B(D+→π+μ+μ−)<7.3(8.3)×10−8, B(D+s→π+μ+μ−)<4.1(4.8)×10−7, B(D+→π−μ+μ+)<2.2(2.5)×10−8, B(D+s→π−μ+μ+)<1.2(1.4)×10−7. These limits are the most stringent to date.
Search for D(s)+→π+μ+μ− and D(s)+→π−μ+μ+ decays
AURIEMMA, Giulio;SATRIANO, Celestina;
2013-01-01
Abstract
A search for non-resonant D+(s)→π+μ+μ− and D+(s)→π−μ+μ+ decays is performed using proton–proton collision data, corresponding to an integrated luminosity of 1.0 fb−1, at s√=7TeV recorded by the LHCb experiment in 2011. No signals are observed and the 90% (95%) confidence level (CL) limits on the branching fractions are found to be B(D+→π+μ+μ−)<7.3(8.3)×10−8, B(D+s→π+μ+μ−)<4.1(4.8)×10−7, B(D+→π−μ+μ+)<2.2(2.5)×10−8, B(D+s→π−μ+μ+)<1.2(1.4)×10−7. These limits are the most stringent to date.File in questo prodotto:
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