Transverse Momentum Dependence in Double Parton Scattering

Gaunt, Jonathan R.  (CERN Theory Division, 1211 Geneva 23, Switzerland) ; Kasemets, Tomas (PRISMA Cluster of Excellence & Mainz Institute for Theoretical Physics Johannes Gutenberg University, 55099 Mainz, Germany)

12 March 2019

Abstract: In this review, we describe the status of transverse momentum dependence (TMD) in double parton scattering (DPS). The different regions of TMD DPS are discussed, and expressions are given for the DPS cross section contributions that make use of as much perturbative information as possible. The regions are then combined with each other as well as single parton scattering to obtain a complete expression for the cross section. Particular emphasis is put on the differences and similarities to transverse momentum dependence in single parton scattering. We further discuss the status of the factorisation proof for double colour singlet production in DPS, which is now on a similar footing to the proofs for TMD factorisation in single Drell-Yan, discuss parton correlations, and give an outlook on possible research on DPS in the near future.

Published in: Advances in High Energy Physics 2019 (2019) 3797394
Published by: Hindawi
DOI: 10.1155/2019/3797394
arXiv: 1812.09099
License: CC-BY-3.0

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