2026-04-14T04:22:33Zhttps://recercat.cat/oai/request

oai:recercat.cat:20.500.14342/30872025-03-11T04:09:07Zcom_2072_482405com_2072_183628col_2072_482415

00925njm 22002777a 4500 dc Calvo Gómez, Míriam author Camboni, Alessandro author Vilasís Cardona, Xavier author LHCb Collaboration - CERN author 2013-06-28 A search for CP violation in D + → ϕπ + decays is performed using data collected in 2011 by the LHCb experiment corresponding to an integrated luminosity of 1.0 fb−1 at a centre of mass energy of 7 TeV. The CP -violating asymmetry is measured to be (−0.04 ± 0.14 ± 0.14)% for candidates with K − K + mass within 20 MeV/c 2 of the ϕ meson mass. A search for a CP -violating asymmetry that varies across the ϕ mass region of the D + → K − K + π + Dalitz plot is also performed, and no evidence for CP violation is found. In addition, the CP asymmetry in the D+s→K0Sπ+ decay is measured to be (0.61 ± 0.83 ± 0.14)%. http://hdl.handle.net/20.500.14342/3087 https://doi.org/10.1007/JHEP06(2013)112 Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) Search for CP violation in D + → ϕπ + and D+s→K0Sπ+ decays