Kamenik, Jernej F. (2012) CP violation in the charm system. Il nuovo cimento C, 35 C (6). pp. 183-190. ISSN 1826-9885
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Abstract
I review the implications of recent measurements of CP violation in D meson decays. The results are discussed in the context of the standard model (SM), as well as its extensions. The observed size of CP violation is not easily explained within the SM, although the required non-perurbative enhancements of the relevant hadronic matrix elements cannot be ruled out from first principles. On the other hand, using effective theory methods, one can derive significant constraints on the possible non-standard contributions from measurements of D0-D¯ 0 mixing and CP violation in kaon decays ( /). Due to an approximate universality of CP violation in new physics scenarios which only break the SU(3)Q flavor symmetry of the SM, such contributions are particularly constrained by /. Explanations of the observed effect within several explicit well-motivated new physics frameworks are briefly discussed. Finally I comment on possible future experimental tests able to distinguish standard vs. non-standard explanations of the observed CP violation in the charm sector.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Charmed mesons ; Decays of charmed mesons ; Charge conjugation, parity, time reversal, and other discrete symmetries |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 25 Apr 2020 15:05 |
| Last Modified: | 25 Apr 2020 15:05 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/17989 |
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