Search for CP violation in D0 → K−K+ and D0 → π−π+ decays

Maccolin, S. (2022) Search for CP violation in D0 → K−K+ and D0 → π−π+ decays. Il nuovo cimento C, 45 (5). pp. 1-4. ISSN 1826-9885

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Abstract

The existence of CP violation has been recently proved by the LHCb experiment in neutral charm meson decays measuring the CP-violating difference ΔACP = ACP (K−K+) − ACP (π−π+). A measurement of the single ACP (K−K+) and ACP (π−π+) is presented making use of D0 → K−K+ and D0 → π−π+ decays promptly produced in proton-proton collisions and reconstructed in data recorded by the LHCb experiment at a centre-of-mass energy of 13 TeV, corresponding to 6/fb of integrated luminosity. The flavour of the meson is determined by the charge of the pion in D∗+ → D0π+ decays. High-yield samples of Cabibbo-favoured D∗+, D+ and D+ s decays are used to subtract nuisance asymmetries due to production and detection effects.

Item Type:	Article
Subjects:	500 Scienze naturali e Matematica > 530 Fisica
Depositing User:	Marina Spanti
Date Deposited:	06 Sep 2022 12:46
Last Modified:	06 Sep 2022 12:46
URI:	http://eprints.bice.rm.cnr.it/id/eprint/22015

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