We present a measurement of the asymmetry ACP between same-sign inclusive dilepton samples ++ and - (=e, μ) from semileptonic B decays in (4S)→BB¯ events, using the complete data set recorded by the BABAR experiment near the (4S) resonance, corresponding to 471×106 BB¯ pairs. The asymmetry ACP allows comparison between the mixing probabilities P(B¯0→B0) and P(B0→B¯0), and therefore probes CP and T violation. The result, ACP=[-3.9±3.5(stat)±1.9(syst)]×10-3, is consistent with the standard model expectation.

Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2015). Study of CP asymmetry in B0- B ¯ 0 mixing with inclusive dilepton events. PHYSICAL REVIEW LETTERS, 114(8) [10.1103/PhysRevLett.114.081801].

Study of CP asymmetry in B0- B ¯ 0 mixing with inclusive dilepton events

Martinelli M.;CARPINELLI, Massimo
Membro del Collaboration Group
;
2015

Abstract

We present a measurement of the asymmetry ACP between same-sign inclusive dilepton samples ++ and - (=e, μ) from semileptonic B decays in (4S)→BB¯ events, using the complete data set recorded by the BABAR experiment near the (4S) resonance, corresponding to 471×106 BB¯ pairs. The asymmetry ACP allows comparison between the mixing probabilities P(B¯0→B0) and P(B0→B¯0), and therefore probes CP and T violation. The result, ACP=[-3.9±3.5(stat)±1.9(syst)]×10-3, is consistent with the standard model expectation.
Articolo in rivista - Articolo scientifico
CHARGE ASYMMETRY; BABAR DETECTOR; DECAY;
English
Carpinelli Massimo (BABAR Collaboration)
Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2015). Study of CP asymmetry in B0- B ¯ 0 mixing with inclusive dilepton events. PHYSICAL REVIEW LETTERS, 114(8) [10.1103/PhysRevLett.114.081801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389168
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