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 = 7 TeV 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) x 10^−8, B(Ds+ → π+ μ+ μ−) < 4.1(4.8) x 10^−7, B(D+ → π− μ+ μ+) < 2.2(2.5) x 10^−8, B(Ds+ → π− μ+ μ+) < 1.2(1.4) x 10^−7. These limits are the most stringent to date.

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2013). Search for D(s)+ → π+ μ+ μ− and D(s)+ → π− μ+ μ+ Decays. PHYSICS LETTERS. SECTION B, 724(4-5), 203-212 [10.1016/j.physletb.2013.06.010].

Search for D(s)+ → π+ μ+ μ− and D(s)+ → π− μ+ μ+ Decays

CARBONE, ANGELO;GALLI, DOMENICO;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2013

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 = 7 TeV 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) x 10^−8, B(Ds+ → π+ μ+ μ−) < 4.1(4.8) x 10^−7, B(D+ → π− μ+ μ+) < 2.2(2.5) x 10^−8, B(Ds+ → π− μ+ μ+) < 1.2(1.4) x 10^−7. These limits are the most stringent to date.
2013
R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2013). Search for D(s)+ → π+ μ+ μ− and D(s)+ → π− μ+ μ+ Decays. PHYSICS LETTERS. SECTION B, 724(4-5), 203-212 [10.1016/j.physletb.2013.06.010].
R. Aaij; C. Abellan Beteta; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/159039
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