Search for CP violation in Λ0 b → pK− and Λ0 b → pπ− decays at LHCb

Ferrari, F. (2019) Search for CP violation in Λ0 b → pK− and Λ0 b → pπ− decays at LHCb. Il nuovo cimento C, 42 (4). pp. 1-3. ISSN 1826-9885

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Abstract

The LHCb experiment at the Large Hadron Collider has been designed to perform high-precision flavour-physics measurements. In particular, CP-violation measurements are of great importance to shed light on some open issues related to the baryon asymmetry in the Universe and to find evidence for physics beyond the Standard Model. A search for CP violation in Λ0 b → pK− and Λ0 b → pπ− decays using an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment during Run 1 is presented. The CP asymmetries are found to be ACP (pK−) = −0.020 ± 0.013 ± 0.019 and ACP (pπ−) = −0.035 ± 0.017 ± 0.020, where the first uncertainties are statistical and the second systematic. No evidence for CP violation is found.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 01 Dec 2020 16:47
Last Modified: 01 Dec 2020 16:47
URI: http://eprints.bice.rm.cnr.it/id/eprint/20551

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