2013/11/27 by N. Néri, Neri, Nicola
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1311.6920
openalex publication_date 2013/11/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In the Standard Model \CP violation in charm decays is expected to be very small, at the level of 0.1% or less. A significant excess of \CP violation with respect to the Standard Model predictions would be a signature of new physics. We report on recent searches for \CP violation in charm meson decays at \babar, using a data sample corresponding to an integrated luminosity of about 470 \invfb. In particular, we report on searches for \CPV in the 3-body \Dp→\Kp\Km\pip decay and for decay modes with a \KS in the final state, such as \Dp→\KS\Kp, \Ds→\KS\Kp, \Ds→\KS\pip. A lifetime ratio analysis of \Dz→\Kp\Km, \pip\pim with respect to \Dz→\Km\pip decays, which is sensitive to \Dz-\Dzb mixing and \CP violation, is also presented here.