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One-loop gauge invariant amplitudes with a space-like gluon

2022/12/07 by Etienne Blanco, Alessandro Giachino, Blanco, Etienne +5
Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #High-Energy Particle Collisions Research

paper · pdf · doi:10.48550/arxiv.2212.03572

Abstract

Nowadays the particle physics has entered an era where high precision calculations are required in order to compare the theoretical predictions with the experimental data. In this paper, we explicitly compute the virtual contributions for the space-like one-jet processes, \procgg,\procqq,\procH and \procee within the auxiliary parton method. Our results, which are expected to play an important role in high precision description of small x physics, explicitly confirm the conjecture developed in Ref. \citevanHameren:2022mtk, thus helping to bridge the gap between lowest order calculations and NLO corrections within hybrid kT-factorization scheme.

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