Exploring new physics with CP violation in neutral D and B decays

If New Physics contributes significantly to neutral-meson mixing, then it is quite likely that it does so in a CP-violating manner. In D-0-(D-0) over bar mixing measured through D-0 --> K+ pi(-), CP violation induces a term proportional to t exp[-Gamma t] with important implications for experiments. For B-s-(B) over bar(s) mixing, a non-vanishing CP asymmetry (above a few percent) a(CP)(B-s --> D-s(+) D-s(-)) is a clear signal of New Physics. Interestingly, this would test precisely the same Standard Model ingredients as the question of whether alpha + beta + gamma = pi.