Wolfram Library Archive

Courseware Demos MathSource Technical Notes
All Collections Articles Books Conference Proceedings

Eikonal gluon bremsstrahlung at finite Nc beyond two loops

Yazid Delenda
Organization: Département de Physique, Faculté des Sciences de la Matière, Université Batna 1
Kamel Khelifa-Kerfa
Organization: Département de Physique, Faculté des Sciences, Université Hassiba Benbouali de Chlef
Journal / Anthology

Year: 2016
Volume: 93
Issue: 5

We present a general formalism for computing the matrix-element squared for the emission of soft energy-ordered gluons beyond two loops in QCD perturbation theory at finite Nc. Our formalism is valid in the eikonal approximation. A Mathematica program has been developed for the automated calculation of all real/virtual eikonal squared amplitudes needed at a given loop order. For the purpose of illustration, we show the explicit forms of the eikonal squared amplitudes up to the fifth-loop order. In the large-Nc limit, our results coincide with those previously reported in literature.

*Science > Physics