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;F. Dordei;R. Litvinov;P. Muzzetto;R. Oldeman;F. Oliva;B. Saitta;J. Sun;G. Manca
2022-01-01
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.File in questo prodotto:
File | Dimensione | Formato | |
---|---|---|---|
PhysRevLett.128.221801.pdf
accesso aperto
Tipologia:
versione editoriale (VoR)
Dimensione
798.49 kB
Formato
Adobe PDF
|
798.49 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.