Eur. Phys. J. C (2012) 72: 2050
https://doi.org/10.1140/epjc/s10052-012-2050-x

Regular Article - Theoretical Physics

Multigluon tree amplitudes with a pair of massive fermions

¹ Center of Mathematical Science, Zhejiang University, Hangzhou, 310027, PR China
² Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou, 310027, PR China
³ Department of Physics, Zhejiang University, Hangzhou, PR China

^* e-mail: huangjh19@gmail.com

Received: 9 May 2012
Published online: 16 June 2012

Abstract

We consider the calculation of n-point multigluon tree amplitudes with a pair of massive fermions in QCD. We give the explicit transformation rules of this kind of massive fermion-pair amplitudes with respect to different reference momenta. Using these rules and onshell BCFW recursion relation, we calculate the analytic results of several n-point multigluon amplitudes.