Double parton scattering in the ultraviolet: addressing the double counting problem

Jonathan Gaunt, Markus Diehl
2017 Proceedings of QCD Evolution 2016 — PoS(QCDEV2016)   unpublished
An important question in the theory of double parton scattering is how to incorporate the possibility of the parton pairs being generated perturbatively via 1 → 2 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
more » ... rk, and the use of these to compute the DPS part, presenting DPS 'luminosities' from our model DPDs for a few sample cases.
doi:10.22323/1.284.0014 fatcat:gbjpdv5bfngihhkgssv7a5neua