MSSM corrections to the top–antitop quark forward–backward asymmetry at the Tevatron

Abstract

We study the effects of the complete supersymmetric QCD and electroweak one-loop corrections to the tt forward-backward asymmetry at the Fermilab Tevatron pp collider. We work in the complex Minimal Supersymmetric Standard Model (MSSM), only restricted by the condition of minimal flavor violation (MFV). We perform a comprehensive scan over the relevant parameter space of the complex MFV-MSSM and determine the maximal possible contributions of these MSSM loop corrections to the forward-backward asymmetry in the tt center-of-mass frame.

Ultraviolet completions of axigluon models and their phenomenological consequences

“…The tension is currently less severe for the axigluons than for the t-channel models, but nevertheless, the correlation between A tt F B and A C could be reduced for unequal couplings to u and d quarks [110,111]. 3 For other mechanisms, see [63][64][65][66][67][68]. For effective operator studies, see [69][70][71][72][73].…”