Effective vertex of quark production in collision of a Reggeized quark and gluon

2015/02/05 by M. G. Kozlov, А. В. Резниченко, A. V. Reznichenko
Mathematics · Physics and Astronomy · #Amplitude #Collision #Combinatorics #Computer science #Gluon #Graph #High-Energy Particle Collisions Research #Logarithm #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Quark #Top quark #Vertex (graph theory) #hep-ph

paper · pdf · doi:10.1103/physrevd.92.125023

published as Phys. Rev. D 92, 125023 (2015) · 17 pages, 2 figures; to be published in Physics of Atomic Nuclei

arxiv created 2015/02/05 · openalex publication_date 2015/12/21 · arxiv updated 2015/12/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We calculate the effective vertex of the quark production in the collision of a Reggeized quark and a Reggeized gluon in the next-to-leading order (NLO). The vertex in question is the missing component of the multi-Regge NLO amplitudes with the quark and gluon exchanges in the t_i channels. This multi-Regge form of the amplitudes is the important hypothesis which was recently proved for the gluon exchanges only and remains unverified within the next-to-leading-logarithmic approximation (NLA) for the general case including the quark exchanges. Our calculation allows one to develop the bootstrap approach to the quark Reggeization proof in NLA.

Citations

• Presenting LiteRed: a tool for the Loop InTEgrals REDuction
• A proof of the reggeized form of amplitudes with quark exchanges
• Proof of the multi-Regge form of QCD amplitudes with gluon exchanges in the NLA
• Radiative corrections to the reggeized quark–reggeized quark–gluon effective vertex