A search for the rare decay D0 → μ+ μ− is performed using a data sample, corresponding to an integrated luminosity of 0.9 fb^−1, of pp collisions collected at a centre-of-mass energy of 7 TeV by the LHCb experiment. The observed number of events is consistent with the background expectations and corresponds to an upper limit of B(D0 → μ+ μ−) < 6.2(7.6) x 10^−9 at 90% (95%) confidence level. This result represents an improvement of more than a factor twenty with respect to previous measurements.

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2013). Search for the Rare Decay D0 → μ+ μ−. PHYSICS LETTERS. SECTION B, 725(1-3), 15-24 [10.1016/j.physletb.2013.06.037].

Search for the Rare Decay D0 → μ+ μ−

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

Abstract

A search for the rare decay D0 → μ+ μ− is performed using a data sample, corresponding to an integrated luminosity of 0.9 fb^−1, of pp collisions collected at a centre-of-mass energy of 7 TeV by the LHCb experiment. The observed number of events is consistent with the background expectations and corresponds to an upper limit of B(D0 → μ+ μ−) < 6.2(7.6) x 10^−9 at 90% (95%) confidence level. This result represents an improvement of more than a factor twenty with respect to previous measurements.
2013
R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2013). Search for the Rare Decay D0 → μ+ μ−. PHYSICS LETTERS. SECTION B, 725(1-3), 15-24 [10.1016/j.physletb.2013.06.037].
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/11585/165251
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