The charmless decays B± → K+ K− π± and B± → π+ π− π± are reconstructed in a data set of pp collisions with an integrated luminosity of 1.0 fb^−1 and center-of-mass energy of 7 TeV, collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured to be A_CP(B± → K+ K− π±) = −0.141 ± 0.040(stat) ± 0.018(syst) ± 0.007(J/ψ K±) and A_CP(B± → π+ π− π±) = 0.117 ± 0.021(stat) ± 0.009(syst) ± 0.007(J/ψ K±), where the third uncertainty is due to the CP asymmetry of the B± → J/ψ K± reference mode. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.

R. Aaij, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, et al. (2014). Measurement of CP Violation in the Phase Space of B± → K+ K− π± and B± → π+ π− π± Decays. PHYSICAL REVIEW LETTERS, 112(1), 1-8 [10.1103/PhysRevLett.112.011801].

Measurement of CP Violation in the Phase Space of B± → K+ K− π± and B± → π+ π− π± Decays

CARBONE, ANGELO;GALLI, DOMENICO;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2014

Abstract

The charmless decays B± → K+ K− π± and B± → π+ π− π± are reconstructed in a data set of pp collisions with an integrated luminosity of 1.0 fb^−1 and center-of-mass energy of 7 TeV, collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured to be A_CP(B± → K+ K− π±) = −0.141 ± 0.040(stat) ± 0.018(syst) ± 0.007(J/ψ K±) and A_CP(B± → π+ π− π±) = 0.117 ± 0.021(stat) ± 0.009(syst) ± 0.007(J/ψ K±), where the third uncertainty is due to the CP asymmetry of the B± → J/ψ K± reference mode. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.
2014
R. Aaij, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, et al. (2014). Measurement of CP Violation in the Phase Space of B± → K+ K− π± and B± → π+ π− π± Decays. PHYSICAL REVIEW LETTERS, 112(1), 1-8 [10.1103/PhysRevLett.112.011801].
R. Aaij; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/216465
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