Double parton scattering in the ultraviolet: addressing the double counting problem
Abstract
An important question in the theory of double parton scattering is how to incorporate the possibility of the parton pairs being generated perturbatively via splitting into the theory, whilst avoiding double counting with single parton scattering loop corrections. Here, we describe a consistent approach for solving this problem, which retains the notion of double parton distributions (DPDs) for individual hadrons. Further, we discuss the construction of appropriate model DPDs in our framework, and the use of these to compute the DPS part, presenting DPS 'luminosities' from our model DPDs for a few sample cases.
Cite
@article{arxiv.1611.01316,
title = {Double parton scattering in the ultraviolet: addressing the double counting problem},
author = {Markus Diehl and Jonathan R. Gaunt},
journal= {arXiv preprint arXiv:1611.01316},
year = {2016}
}
Comments
8 pages, 3 figures. To appear in the proceedings of the QCD Evolution Workshop 2016, Amsterdam, the Netherlands, May 30 - June 3, 2016. v2: fixed a typo in eq. 3.6 (values transposed between h_g and h_q), inserted missing factor 2pi in all curves in figure 3