2026-04-13T18:22:10Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1864392025-11-21T05:47:46Zcom_2072_1057col_2072_478823col_2072_478917

00925njm 22002777a 4500 dc Camboni, Alessandro author Coquereau, Samuel author Garrido Beltrán, Lluís author Gascón Fora, David author Graciani Díaz, Ricardo author Graugés Pous, Eugeni author Marin Benito, Carla author Picatoste Olloqui, Eduardo author Rives Molina, Vicente José author LHCb Collaboration author 2022-06-08T13:49:44Z 2022-06-08T13:49:44Z 2017-08 2022-06-08T13:49:44Z A search for CP violation in D± →η‧π± and Ds± →η‧π± decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 3 fb-1, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The measured CP-violating charge asymmetries are ACP (D± →η‧π±) = (- 0.61 ± 0.72 ± 0.53 ± 0.12)% and ACP (Ds± →η‧π±) = (- 0.82 ± 0.36 ± 0.22 ± 0.27)%, where the first uncertainties are statistical, the second systematic, and the third are the uncertainties on the ACP (D± →KS0 π±) and ACP (Ds± → ϕπ±) measurements used for calibration. The results represent the most precise measurements of these asymmetries to date. Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments Measurement of CP asymmetries in D± → η‧π± and Ds± →η‧π± decays