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Top Quark Forward-Backward Asymmetry in the Little Higgs Model by Guo, Xing-Dao; Zhang, Yin-Jie; Zhao, Shu-Min; Feng, Tai-Fu; Yuan, Xu-Hao; Li, Xue-Qian is a scholarly article available to read on EtoBox.

What is Top Quark Forward-Backward Asymmetry in the Little Higgs Model about?

We calculate the forward backward asymmetry of the top-pair production at TEVATRON up to next to leading order (NLO) in the little Higgs model (LHM). We find that the contribution of $Z_H$ can be large enough to make up the gap between standard model (SM) prediction and data. With the database of $7.65\pm0.20\pm0.36$ pb, therefore, the parameter space for flavor-changing coupling of $Z_H$ is constrained. Thus this model can result in the required asymmetry while the total cross section of top-pair production remaining consistent with data.

Author

Guo, Xing-Dao; Zhang, Yin-Jie; Zhao, Shu-Min; Feng, Tai-Fu; Yuan, Xu-Hao; Li, Xue-Qian

Published

2013

Language

EN