Impact factor of Chinese Physics C is 3.6 in 2023 Impact factor of Chinese Physics C is 3.6 in 2022 2021 Impact Factor 2.944
Advanced Search
Chinese Physics C> 2014, Vol. 38> Issue(11) : 113102 DOI: 10.1088/1674-1137/38/11/113102

Top quark forward-backward asymmetry in the little Higgs model

  • 1.

      Department of Physics and Technology, Hebei University, Baoding 071002, China

  • 2.

      Center for High Energy Physics, Department of Engineering Physics, Tsinghua University, Beijing 100084, China

  • 3.

      Department of Physics, Nankai University, Tianjin 300071, China

  • A sizable difference in top quark pair forward backward asymmetry (AFB) is observed at Tevatron. The discrepancy triggers many new physics beyond the standard model (SM) and then constrains the parameter spaces in them. In this article we calculate the AFB 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 ZH can be large enough to make up the gap between SM prediction and experimental data. Then, the parameter space for the couplings between ZH and quarks are constrained. Thus, this model can fulfill the experimental data, both in AFB and in cross section.
      PCAS:
  • 加载中

  • Access

    加载中

Get Citation
GUO Xing-Dao, ZHANG Yin-Jie, ZHAO Shu-Min, FENG Tai-Fu, YUAN Xu-Hao and LI Xue-Qian. Top quark forward-backward asymmetry in the little Higgs model[J]. Chinese Physics C, 2014, 38(11): 113102. doi: 10.1088/1674-1137/38/11/113102
GUO Xing-Dao, ZHANG Yin-Jie, ZHAO Shu-Min, FENG Tai-Fu, YUAN Xu-Hao and LI Xue-Qian. Top quark forward-backward asymmetry in the little Higgs model[J]. Chinese Physics C, 2014, 38(11): 113102.  doi: 10.1088/1674-1137/38/11/113102 shu
Milestone
Received: 2014-02-28
Revised: 2014-06-03
Article Metric

Article Views(2716)
PDF Downloads(208)
Cited by(0)
Policy on re-use
To reuse of Open Access content published by CPC, for content published under the terms of the Creative Commons Attribution 3.0 license (“CC CY”), the users don’t need to request permission to copy, distribute and display the final published version of the article and to create derivative works, subject to appropriate attribution.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Top quark forward-backward asymmetry in the little Higgs model

    Corresponding author: ZHAO Shu-Min,
    Corresponding author: FENG Tai-Fu,
  • 1.  Department of Physics and Technology, Hebei University, Baoding 071002, China
  • 2.  Center for High Energy Physics, Department of Engineering Physics, Tsinghua University, Beijing 100084, China
  • 3.  Department of Physics, Nankai University, Tianjin 300071, China
  • Received Date: 2014-02-28
  • Accepted Date: 2014-06-03
  • Available Online: 2014-11-05

Abstract: A sizable difference in top quark pair forward backward asymmetry (AFB) is observed at Tevatron. The discrepancy triggers many new physics beyond the standard model (SM) and then constrains the parameter spaces in them. In this article we calculate the AFB 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 ZH can be large enough to make up the gap between SM prediction and experimental data. Then, the parameter space for the couplings between ZH and quarks are constrained. Thus, this model can fulfill the experimental data, both in AFB and in cross section.

    HTML

目录

Link
IOPScience
SCOAP3
arXiv
Chinese Physical Society
Journal information
Introduction
Editorial Board
Others
Subscribe
Contact us
QQ: 1307685413
Tel: +86-010-88235947
Fax: +86-010-88233126
E-mail: cpc@ihep.ac.cn

  • CPC Website

  • IOP Website

  • CPC WeChat

Copyright © Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, China 京ICP备05002789号-1

Supported by: Beijing Renhe Information Technology Co. Ltd  E-mail: info@rhhz.net

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return