The first full angular analysis and an updated measurement of the decay-rate CP asymmetry of the D0 → πþπ−μþμ− and D0 → KþK−μþμ− decays are reported. The analysis uses proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. The dataset corresponds to an integrated luminosity of 9 fb−1. The full set of CP -averaged angular observables and their CP asymmetries are measured as a function of the dimuon invariant mass. The results are consistent with expectations from the standard model and with CP symmetry.

Angular Analysis of D0→π+π−μ+μ− and D0→K+K−μ+μ− Decays and Search for CP Violation

B. Audurier;S. Belin;D. Brundu;A. Bursche;A. Cardini;F. Dettori;R. Litvinov;P. Muzzetto;R. Oldeman;F. Oliva;B. Saitta;J. Sun;
2022

Abstract

The first full angular analysis and an updated measurement of the decay-rate CP asymmetry of the D0 → πþπ−μþμ− and D0 → KþK−μþμ− decays are reported. The analysis uses proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. The dataset corresponds to an integrated luminosity of 9 fb−1. The full set of CP -averaged angular observables and their CP asymmetries are measured as a function of the dimuon invariant mass. The results are consistent with expectations from the standard model and with CP symmetry.
Angular analysis; Center-of-mass energies; Centre-of-mass energies; CP asymmetries; CP violations; Decay rate; Integrated luminosity; Invariant mass; Measurements of; Proton proton collisions
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/343721
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