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Article
Report number arXiv:2206.02038 ; LHCb-PAPER-2021-050 ; CERN-EP-2022-101
Title Search for direct CP violation in charged charmless BPV decays
Author(s) LHCb Collaboration  Show all 1011 authors
Corporate Author(s) LHCb Collaboration
Publication 2023-07-01
Imprint 07 Jun 2022
Number of pages 13
Note All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-050.html
In: Phys. Rev. D 108 (2023) 012013
DOI 10.1103/PhysRevD.108.012013 (publication)
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords flavor physics ; CP violation
Abstract Measurements of CP asymmetry in charmless BPV decays are presented, where P and V denote a pseudoscalar and a vector meson, respectively. Five different BPV decays from four final states, B±π±π+π, B±K±π+π, B±K±K+K and B±π±K+K are analised. The measurements are based on a method that does not require full amplitude analyses, and are performed using proton-proton collision data at a centre-of-mass energy of 13TeV collected by LHCb between 2015 and 2018, corresponding to an integrated luminosity of 5.9 fb1. In the B±ρ(770)0K± decay, a CP asymmetry of ACP = +0.150 ± 0.019 ± 0.011 is measured, where the first uncertainty is statistical and the second is systematic. This is the first observation of CP violation in this decay. For the other four decay channels, B±ρ(770)0π±, B±K()(892)0π±, B±K()(892)0K± and B±ϕ(1020)K± decays, CP asymmetries compatible with zero are measured.
Copyright/License Preprint: © 2022-2025 CERN (License: CC-BY-4.0)
Publication: © 2023-2025 CERN (License: CC BY 4.0), sponsored by SCOAP³

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Email contact: lhcb.secretariat@cern.ch


 Record created 2022-06-07, last modified 2025-02-05


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