1210.5120 (Bingfang Yang et al.)

One-loop effects on top pair production in the littlest Higgs model with
T-parity at the LHC    [PDF]

Bingfang Yang, Ning Liu

We calculate the one-loop corrections to top pair($t\bar{t}$) production at the Large Hadron Collider(LHC) for $\sqrt{s}=8$ TeV and 14 TeV in the context of the Littlest Higgs model with T-parity(LHT). We find that the relative corrections to $t\bar{t}$ cross section can maximally reach 4.5% for $\sqrt{s}=8$ TeV in the favorable parameter space. We also study other observables in $t\bar{t}$ production, such as top charge asymmetry, spin correlation and polarization asymmetry. We note that the spin correlation is sensitive to the loop corrections from LHT model, and can be optimally reduced by -14.5% for $\sqrt{s}=8$ TeV.

View original: http://arxiv.org/abs/1210.5120