2013/11/12 by G. Inguglia, Inguglia, Gianluca
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.1311.2754
openalex publication_date 2013/11/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The breaking of the CP symmetry in D0 meson decays has been awaited for a long time. After a set of measurements provided by the LHCb, CDF, and Belle Collaborations leading in march 2012 to combined results that were consistent with no CP violation at a CL of 0.006% suggesting CP violation at ∼1% level. Such a potentially large value of CP violation in charm decays has triggered widespread interest from the whole particle physics community to evaluate the implications of such an interesting unexpected results. However, a more recent combination of more up-to-date results in March 2013, has slightly changed the situation, showing that data are consistent with the CP conserving hypothesis at 2.1% CL. I briefly review the method used by the various Collaborations when extracting the quantity ΔACP and the relative results. Finally I discuss the need for additional measurements, and present the potential of a time-dependent analysis when looking for CP violation in D0 decays and how this can be used to largely improve the current sensitivity on the mixing phase ϕMIX.