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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/174978
Observation of Several Sources of CP Violation in B+ -> pi(+)pi(+)pi(-) Decays
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Observations are reported of different sources of CP violation from an amplitude analysis of B+→π+π+π− decays, based on a data sample corresponding to an integrated luminosity of 3 fb−1 of pp collisions recorded with the LHCb detector. A large CP asymmetry is observed in the decay amplitude involving the tensor f2(1270) resonance, and in addition significant CP violation is found in the π+π−S wave at low invariant mass. The presence of CP violation related to interference between the π+π−S wave and the P wave B+→ρ(770)0π+ amplitude is also established; this causes large local asymmetries but cancels when integrated over the phase space of the decay. The results provide both qualitative and quantitative new insights into CP -violation effects in hadronic B decays.
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ALFONSO ALBERO, Alejandro, et al. Observation of Several Sources of CP Violation in B+ -> pi(+)pi(+)pi(-) Decays. Physical Review Letters. 2020. Vol. 124, num. 3, pags. 031801. ISSN 0031-9007. [consulted: 22 of June of 2026]. Available at: https://hdl.handle.net/2445/174978