NONPERTURBATIVE APPROACH TO THE PROBLEM OF ANOMALOUS FB ASYMMETRY IN TOP PAIR PRODUCTION AT TEVATRON

作者：Arbuzov Boris A^*; Pitikov Alexei I; Zaitsev Ivan V

来源：International Journal of Modern Physics A, 2013, 28(21): 1350107.

DOI：10.1142/S0217751X13501078

• Compensation equation
• effective four-fermion interaction
• forward-backward asymmetry

We apply Bogoliubov compensation principle to the problem of forward-backward asymmetry in t (t) over bar production at TEVATRON. The nontrivial solution of compensation equation for anomalous four-fermion effective interaction of doublets of heavy and light quarks leads to possibility of existence of (t) over baru, (b) over bard vector bound states (resonance). The coupling of the bound state to (t) over bar, 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 (t) over bar mass. Predictions for the resonance mass and production cross-section at LHC are presented.

• 出版日期2013-8-20