1302.0663 (Boris A. Arbuzov et al.)

Non-perturbative approach to the problem of anomalous FB asymmetry in
top pair production at TEVATRON    [PDF]

Boris A. Arbuzov, Ivan V. Zaitsev

We apply Bogoliubov compensation principle to the problem of forward-backward asymmetry in $t \bar t$ production at TEVATRON. The non-trivial solution of compensation equation for anomalous four-fermion interaction effective interaction of doublets of heavy and light quarks leads to possibility of existence of $\bar t u,\, \bar b d$ vector bound states (resonance). The coupling of the bound state to $\bar t,\,u$ pair is calculated. With this result we obtain satisfactory description of totality of data on the effect of FB asymmetry including slope of effect dependence on invariant $t \bar t$ mass. Predictions for the resonance mass and production cross-section at LHC are presented.

View original: http://arxiv.org/abs/1302.0663