Collider Cross Talk

CP Violation in the charm sector

by Dmytro Kovalskyi (Massachusetts Inst. of Technology (US)), Maria Laura Piscopo, Roberto Ribatti (EPFL)

4/2-011 - TH common room (CERN)

4/2-011 - TH common room


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The existence of CP violation in Nature is directly connected, through the Sakharov conditions, to the origin of the matter-antimatter asymmetry observed in the Universe. Hence, testing the Standard Model (SM) predictions for CP asymmetries against the experimental data is a crucial task in the search for physics beyond the SM (BSM). The LCHb collaboration performed the first observation of CP violation in the charm sector in 2019, however, as corresponding robust theoretical predictions are still missing, a clear interpretation of the data has not yet been achieved. In this talk we will review the current status of charm CP violation, and discuss challenges and future prospects from both the theoretical and experimental sides. In particular, recent advances in the theoretical prediction of direct CP violation as well as new experimental results from the CMS and LHCb collaborations will be presented.

Dmytro Kovalskyi (CMS) received a PhD from the University of Maryland, where he studied CP violation in rare charmless B-decays with the BaBar experiment. As a postdoc at the University of California, Santa Barbara, he was one of the coordinators of Higgs boson searches in the WW final state. Currently, he is a principal research scientist at MIT, focusing on rare decay searches such as B to mm. Additionally, he serves as one of the B-physics coordinators for the CMS experiment.

Maria Laura Piscopo (TH) did her PhD studies at the Institute for Particle Physics Phenomenology in Durham (UK) and at the University of Siegen (Germany). Currently she is a postdoctoral research fellow at the University of Siegen. Her research focuses on heavy quark flavour physics, and in particular on SM calculations for the phenomenology of beauty and charm hadrons. During her PhD she mainly worked on predictions for inclusive heavy hadron decays based on the Heavy Quark Expansion (HQE), while more recently her interests have focused on studies of exclusive B and D-meson decays using the framework of Light-Cone sum rules (LCSR).

Roberto Ribatti (LHCb) received his PhD from the Scuola Normale Superiore of Pisa (IT) and is currently a postdoctoral researcher at EPFL. His main research activity focuses on the study of mixing and CP violation in the decays of D mesons at the LHCb experiment, for which he is currently one of the coordinators for mixing and CP violation in the Charm physics working group.