2026-04-17T03:12:23Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/2206452025-04-28T02:27:23Zcom_2072_1057col_2072_478823
RECERCAT
author
Aaij, R.
author
Alfonso Albero, Alejandro
author
Comerma-Montells, A.
author
Garcia Moreno, Paula
author
Garrido Beltrán, Lluís
author
Gironella Gironell, Pere
author
Gomez Fernandez, S.
author
Graugés Pous, Eugeni
author
Lobo Salvia, Aniol
author
López Huertas, Albert
author
Manera Escalero, Rafel
author
Marin Benito, Carla
author
Mauricio, J.
author
Vazquez Gomez, Ricardo
author
LHCb collaboration
2025-04-28T02:27:23Z
2025-04-28T02:27:23Z
2025-04-25T16:05:59Z2025-04-25T16:05:59Z20232025-04-25T16:05:59Z
http://hdl.handle.net/2445/220645
The CP asymmetries of seven B− decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb−1 of proton-proton collisions collected by the LHCb experiment. Decays involving a D∗0 or D∗− s meson are analysed by reconstructing only the D0 or D− s decay products. This paper presents the frst measurement of ACP (B− → D∗− s D0 ) and ACP (B− → D− s D∗0 ), and the most precise measurement of the other fve CP asymmetries. There is no evidence of CP violation in any of the analysed decays. Additionally, two ratios between branching fractions of selected decays are measured.
cc-by (c) Aaij, R. et al., 2023 http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess
Hadrons
Física de partícules
Hadrons
Particle physics
Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion