How large can the SM contribution to CP violation in D0 − D0 mixing be?
- Bobrowski, M.
- Lenz, A.
- Riedl, J.
- Rohrwild, J.
Publication date
March 2010
DOI Publisher
Scuola Internazionale Superiore di Studi Avanzati (SISSA)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
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