https://doi.org/10.1140/epjc/s10052-013-2570-z
Regular Article - Theoretical Physics
One-loop effects on top pair production in the littlest Higgs model with T-parity at the LHC
1
College of Physics & Electronic Engineering, Henan Normal University, Xinxiang, 453007, China
2
Basic Teaching Department, Jiaozuo University, Jiaozuo, 454000, China
* e-mail: wlln@mail.ustc.edu.cn
Received:
25
May
2013
Revised:
27
July
2013
Published online:
18
September
2013
In this work, we systematically investigate the one-loop corrections to 
production in the littlest Higgs model with T-parity (LHT) at the LHC for 
. We focus on the effects of LHT particles on cross section, polarization asymmetries, spin correlation and charge asymmetry at the LHC. We also study the top quark forward–backward asymmetry at Tevatron and its correlations with the LHC observables. We found that: (1) the contributions of the LHT particles to production can only reach about 1 % at the 14 TeV LHC. Meanwhile, the anomalous top quark forward–backward asymmetry at Tevatron is also hardly to be explained in the LHT model. (2) The parity violating asymmetries in production, such as left–right asymmetry |A
LR| and the polarization |P
t
| can, respectively, reach 1.1 % and 0.5 %, which may have the potential to provide a signal of LHT at the LHC.
© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica, 2013
