2012/06/20 by Hai-Yang Cheng, Cheng, Hai-Yang
Computer Science · Physics and Astronomy · #Advanced Data Storage Technologies #Distributed systems and fault tolerance #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1206.4369
19 pages, 2 figures, to appear in the proceedings of The 5th International Workshop on Charm Physics (Charm 2012)
arxiv created 2012/06/20 · openalex publication_date 2012/06/20 · arxiv updated 2012/06/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Evidence of CP violation in the charm sector has been observed recently by the LHCb and CDF Collaborations. The issue of whether it can be accommodated within the standard model (SM) is examined in this talk. We conclude that the CP asymmetry difference ΔaCP\rm dir between D0 → K+ K- and D0 → π+ π- is of order -(0.14∼ 0.15)%. If the improved theoretical estimate of ΔaCP\rm dir in the SM remains to be a few per mille and the experimental measurement continues to be large with more statistics in the future, it will be clear evidence of physics beyond the SM in the charm sector.