August 28, 2011 to September 2, 2011
US/Central timezone
Slides available on Indico -- there are no formal proceedings

Flavor dependent U(1)' models for the top forward-backward asymmetry and Wjj excess at CDF

Aug 29, 2011, 11:15 AM
D: Wilson Hall 1 North

D: Wilson Hall 1 North


Dr Yuji Omura (KIAS)


We present flavor models for leptophobic $Z^{'}$ with flavor dependent couplings to the right-handed up-type quarks in the standard model, which can accommodate the recent data on the top forward-backward asymmetry and the dijet resonance reported by CDF Collaboration. Such flavor-dependent charge assignments generally require extra chiral fermions for anomaly free and extra Higgs doublets for realistic mass matrices. We also discuss the extra higgs contributions to the top forward-backward asymmetry, and notice that they may be required to avoid the constraint from the cross sections involving top quark, such as the same-sign top process. We also show that the extension could realize cold dark matter candidates.

Presentation materials