Lepton pair production through two photon process in heavy ion collisions

This paper investigates the electromagnetic production of lepton pairs with low total transverse momentum in relativistic heavy-ion collisions. We estimate the initial photons' transverse momentum contributions by employing models where the average transverse momentum squared of the incoming ph...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. D 2020-11, Vol.102 (9), p.1, Article 094013
Main Authors: Klein, Spencer, Mueller, A. H., Xiao, Bo-Wen, Yuan, Feng
Format: Article
Language:English
Subjects:
Gluons
Heavy ions
Ionic collisions
Leptons
NUCLEAR PHYSICS AND RADIATION PHYSICS
Pair production
Photons
Quark-gluon plasma
Quarks
Transverse momentum
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper investigates the electromagnetic production of lepton pairs with low total transverse momentum in relativistic heavy-ion collisions. We estimate the initial photons' transverse momentum contributions by employing models where the average transverse momentum squared of the incoming photon can be calculated in the equivalent photon approximation. We further derive an all order QED resummation for the soft photon radiation, which gives an excellent description of the ATLAS data in ultraperipheral collisions at the LHC. For peripheral and central collisions, additional pT-broadening effects from multiple interactions with the medium and the magnetic field contributions from the quark-gluon plasma are also discussed.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.102.094013