Journal of High Energy Physics

, 2011:43

One-loop helicity amplitudes for top quark pair production in Randall-Sundrum model

Authors

  • Hua Xing Zhu
    • Department of Physics and State Key Laboratory of Nuclear Physics and TechnologyPeking University
    • Department of Physics and State Key Laboratory of Nuclear Physics and TechnologyPeking University
  • Liang Dai
    • Department of Physics and State Key Laboratory of Nuclear Physics and TechnologyPeking University
  • Jun Gao
    • Department of Physics and State Key Laboratory of Nuclear Physics and TechnologyPeking University
  • Jian Wang
    • Department of Physics and State Key Laboratory of Nuclear Physics and TechnologyPeking University
  • C.-P. Yuan
    • Department of Physics and AstronomyMichigan State University
Article

DOI: 10.1007/JHEP09(2011)043

Cite this article as:
Zhu, H.X., Li, C.S., Dai, L. et al. J. High Energ. Phys. (2011) 2011: 43. doi:10.1007/JHEP09(2011)043

Abstract

In this paper, we show how to calculate analytically the one-loop helicity amplitudes for the process \( q\bar{q} \to t\bar{t} \) induced by KK gluon, using the spinor helicity formalism. A minimal set of Feynman rules which are uniquely fixed by gauge invariance and the color representation of the KK gluon are derived and used in the calculation. Our results can be applied to a variety of models containing a massive color octet vector boson.

Keywords

NLO Computations Field Theories in Higher Dimensions

Copyright information

© SISSA, Trieste, Italy 2011