Theorie-Palaver

Jan. 7, 2014 at 2:30 p.m. in Sozialraum der WA THEP

Upalaparna Banerjee

Federico Gasparotto

Pouria Mazloumi

Yong Xu

New strong interactions from t t-bar asymmetries
Joachim Brod (University of Cincinnati)


The CDF and D0 experiments at Tevatron measure a top-quark forward-backwardasymmetry significantly larger than the standard-model prediction. We construct a model which involves new strong interactions at the electroweak scale and can explain the measured asymmetry. Our model possesses a flavor symmetry which allows to evade flavor and collider constraints, while it still permits flavor-violating couplings of order 1 which are needed to generate the asymmetry via light t channel vectors.