Yonit Hochberg, Yosef Nir
The CDF and LHCb experiments have recently provided two intriguing hints for
new physics: a large forward-backward asymmetry in $t\bar t$ production, and a
direct CP asymmetry in D decays of order a percent. In both cases, flavor
non-universal interactions are required in the up sector, raising the
possibility that the two effects come from one and the same new physics source.
We show that a minimal model, with an extra scalar doublet, previously
suggested to explain the top data, gives -- without any modifications or
additions -- a contribution to CP violation in charm decays that is of the
right size.
View original:
http://arxiv.org/abs/1112.5268
No comments:
Post a Comment