How large can the SM contribution to CP violation in D0 − D0 mixing be?

Bobrowski, M.; Lenz, A.; Riedl, J.; Rohrwild, J.

Abstract

We reconsider the leading HQE contributions to the absorptive part of the mixing amplitude of neutral D mesons by taking also α s corrections and subleading 1/m c corrections into account. We show that these contributions to Γ12 do not vanish in the exact SU(3) F limit and they also can have a large phase. Moreover, we give an example of a new physics model that can enhance these leading HQE terms to Γ12, which are orders of magnitude lower than the current experimental expectation, by one to two orders of magnitude.

Citation

Bobrowski, M., Lenz, A., Riedl, J., & Rohrwild, J. (2010). How large can the SM contribution to CP violation in D0 − D0 mixing be?. Journal of High Energy Physics, 2010(03), https://doi.org/10.1007/jhep03%282010%29009

• Journal Article Type: Article
• Publication Date: Mar 1, 2010
• Deposit Date: Nov 19, 2012
• Publicly Available Date: Feb 17, 2015
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2010
• Issue: 03
• DOI: https://doi.org/10.1007/jhep03%282010%29009
• Keywords: Beyond standard model, Heavy quark physics, CP violation, Standard model.