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Title: Lepton pair production through two photon process in heavy ion collisions

Abstract

This paper investigates the electromagnetic production of lepton pairs with low total transverse momentum in relativistic heavy-ion collisions. First, 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.

Authors:
ORCiD logo; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1712832
Alternate Identifier(s):
OSTI ID: 1762197
Grant/Contract Number:  
AC02-05CH11231; 11575070; FG02-92ER40699
Resource Type:
Published Article
Journal Name:
Physical Review. D.
Additional Journal Information:
Journal Name: Physical Review. D. Journal Volume: 102 Journal Issue: 9; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Klein, Spencer, Mueller, A. H., Xiao, Bo-Wen, and Yuan, Feng. Lepton pair production through two photon process in heavy ion collisions. United States: N. p., 2020. Web. doi:10.1103/PhysRevD.102.094013.
Klein, Spencer, Mueller, A. H., Xiao, Bo-Wen, & Yuan, Feng. Lepton pair production through two photon process in heavy ion collisions. United States. https://doi.org/10.1103/PhysRevD.102.094013
Klein, Spencer, Mueller, A. H., Xiao, Bo-Wen, and Yuan, Feng. Fri . "Lepton pair production through two photon process in heavy ion collisions". United States. https://doi.org/10.1103/PhysRevD.102.094013.
@article{osti_1712832,
title = {Lepton pair production through two photon process in heavy ion collisions},
author = {Klein, Spencer and Mueller, A. H. and Xiao, Bo-Wen and Yuan, Feng},
abstractNote = {This paper investigates the electromagnetic production of lepton pairs with low total transverse momentum in relativistic heavy-ion collisions. First, 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.},
doi = {10.1103/PhysRevD.102.094013},
journal = {Physical Review. D.},
number = 9,
volume = 102,
place = {United States},
year = {Fri Nov 13 00:00:00 EST 2020},
month = {Fri Nov 13 00:00:00 EST 2020}
}

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