Search for D+(s) to pi+ mu+ mu- and D+(s) to pi- mu+ mu+ decays

R. Aaij, J.F.J. van den Brand, F. Dettori, T.J. Ketel, R. Koopman, R.W. Lambert, D. Martinez-Santos, M.H.M. Merk, H.G. Raven, M. Schiller, V. Syropoulos, S. Tolk, Collaboration LHCb

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A search for non-resonant D<inf>(s)</inf>+ → π+μ+μ- and D<inf>(s)</inf>+ → 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<inf>s</inf>+ → π+μ+μ-)<4.1(4.8)×10-7, B(D+ → π-μ+μ+)<2.2(2.5)×10-8, B(D<inf>s</inf>+ → π-μ+μ+)<1.2(1.4)×10-7. These limits are the most stringent to date. © 2013 CERN.
Original languageEnglish
Pages (from-to)203-212
JournalPhysics Letters B
Issue number4-5
Publication statusPublished - 2013

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