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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/133332
Measurement of CP Violation in the Phase Space of B±→K±π+π− and B±→K±K+K− Decays
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The charmless decays B ± → K ± π + π − and B ± → K ± K + K − are reconstructed using data, corresponding to an integrated luminosity of 1.0 fb − 1 , collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured as A C P ( B ± → K ± π + π − ) = 0.032 ± 0.008 ( stat ) ± 0.004 ( syst ) ± 0.007 ( J / ψ K ± ) and A C P ( B ± → K ± K + K − ) = − 0.043 ± 0.009 ( stat ) ± 0.003 ( syst ) ± 0.007 ( J / ψ K ± ) , where the third uncertainty is due to the C P asymmetry of the B ± → J / ψ K ± reference mode. The significance of A C P ( B ± → K ± K + K − ) exceeds three standard deviations and is the first evidence of an inclusive C P asymmetry in charmless three-body B decays. In addition to the inclusive C P asymmetries, larger asymmetries are observed in localized regions of phase space.
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CALVO GÓMEZ, Míriam, et al. Measurement of CP Violation in the Phase Space of B±→K±π+π− and B±→K±K+K− Decays. Physical Review Letters. 2013. Vol. 111, num. 10, pags. 101801. ISSN 0031-9007. [consulted: 1 of July of 2026]. Available at: https://hdl.handle.net/2445/133332