TY - JOUR
T1 - Relating direct CP violation in D decays and the forward-backward asymmetry in tt̄ production
AU - Hochberg, Yonit
AU - Nir, Yosef
PY - 2012/6/26
Y1 - 2012/6/26
N2 - The CDF and LHCb experiments have recently provided two intriguing hints for new physics: a large forward-backward asymmetry in tt̄ production and a direct CP asymmetry in D decays of order of a percent. In both cases, flavor nonuniversal 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.
AB - The CDF and LHCb experiments have recently provided two intriguing hints for new physics: a large forward-backward asymmetry in tt̄ production and a direct CP asymmetry in D decays of order of a percent. In both cases, flavor nonuniversal 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.
UR - http://www.scopus.com/inward/record.url?scp=84863009998&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.108.261601
DO - 10.1103/PhysRevLett.108.261601
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AN - SCOPUS:84863009998
SN - 0031-9007
VL - 108
JO - Physical Review Letters
JF - Physical Review Letters
IS - 26
M1 - 261601
ER -