Using a data sample corresponding to an integrated luminosity of 0.35  fb^−1 collected by LHCb in 2011, we report the first evidence of CP violation in the decays of B0s mesons to K± π∓ pairs, A_{CP}(B0s → K π) = 0.27 ± 0.08(stat) ± 0.02(syst), with a significance of 3.3σ. Furthermore, we report the most precise measurement of CP violation in the decays of B0 mesons to K± π∓ pairs, A_{CP}(B0 → K π) = −0.088 ± 0.011(stat) ± 0.008(syst), with a significance exceeding 6σ.

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2012). First Evidence of Direct CP Violation in Charmless Two-Body Decays of B0s Mesons. PHYSICAL REVIEW LETTERS, 108(20), 1-8 [10.1103/PhysRevLett.108.201601].

First Evidence of Direct CP Violation in Charmless Two-Body Decays of B0s Mesons

CARBONE, ANGELO;GALLI, DOMENICO;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2012

Abstract

Using a data sample corresponding to an integrated luminosity of 0.35  fb^−1 collected by LHCb in 2011, we report the first evidence of CP violation in the decays of B0s mesons to K± π∓ pairs, A_{CP}(B0s → K π) = 0.27 ± 0.08(stat) ± 0.02(syst), with a significance of 3.3σ. Furthermore, we report the most precise measurement of CP violation in the decays of B0 mesons to K± π∓ pairs, A_{CP}(B0 → K π) = −0.088 ± 0.011(stat) ± 0.008(syst), with a significance exceeding 6σ.
2012
R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2012). First Evidence of Direct CP Violation in Charmless Two-Body Decays of B0s Mesons. PHYSICAL REVIEW LETTERS, 108(20), 1-8 [10.1103/PhysRevLett.108.201601].
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/11585/116263
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