A Brief Comment on Multi-Gluon Amplitudes and Double Parton Interactions
High Energy Physics - Phenomenology
2016-02-03 v1
Abstract
A typical contribution to a color ordered multi-gluon amplitude, which can split into two weakly correlated two-body gluon scattering amplitudes and may thus contribute to a Double Parton Interaction, is briefly discussed. We find that the color ordered amplitude is not enhanced in the typical configuration generated by a DPI, where the transverse momenta of final state gluons are compensated pairwise, while a dominant contribution to the multi-gluon amplitude is due to terms proportional to the fusion amplitude of two initial state gluons. Which corresponds to an amplitude effectively describing a two rather than a three-body partonic interaction.
Keywords
Cite
@article{arxiv.1602.00923,
title = {A Brief Comment on Multi-Gluon Amplitudes and Double Parton Interactions},
author = {Daniele Treleani and Giorgio Calucci},
journal= {arXiv preprint arXiv:1602.00923},
year = {2016}
}
Comments
5 pages, 5 figures. Prepared for the MPI@LHC2015, ICTP Trieste, Italy