Next-to-soft corrections to high energy scattering in QCD and gravity

Autor:	Luna, A., Melville, S., Naculich, S. G., White, C. D.
Rok vydání:	2016
Předmět:	High Energy Physics - Theory General Relativity and Quantum Cosmology High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
DOI:	10.1007/JHEP01(2017)052
Popis:	We examine the Regge (high energy) limit of 4-point scattering in both QCD and gravity, using recently developed techniques to systematically compute all corrections up to next-to-leading power in the exchanged momentum i.e. beyond the eikonal approximation. We consider the situation of two scalar particles of arbitrary mass, thus generalising previous calculations in the literature. In QCD, our calculation describes power-suppressed corrections to the Reggeisation of the gluon. In gravity, we confirm a previous conjecture that next-to-soft corrections correspond to two independent deflection angles for the incoming particles. Our calculations in QCD and gravity are consistent with the well-known double copy relating amplitudes in the two theories. Comment: 37 pages, 9 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1611.02172 Zobrazit plný text záznamu View this record from Arxiv