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Title: Acoplanarity of a Lepton Pair to Probe the Electromagnetic Property of Quark Matter

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Columbia Univ., New York, NY (United States)
  3. Central China Normal Univ., Wuhan (China); Ecole Polytechnique, Palaiseau (France)

We investigate the $$P_{T}$$-broadening effects in dilepton production through photon-photon scattering in heavy ion collisions. The QED multiple interaction effect with the medium is found to be consistent with the recent observation of a low transverse momentum lepton pair from the ATLAS Collaboration at the LHC. We further comment on the magnetic broadening effect and point out a number of ways to disentangle these two mechanisms. In particular, the rapidity dependence of the $$P_{T}$$-broadening effect provides a unique probe to the magnetic effect.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
AC02-05CH11231; 11575070
OSTI ID:
1504808
Alternate ID(s):
OSTI ID: 1616083
Journal Information:
Physical Review Letters, Vol. 122, Issue 13; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 39 works
Citation information provided by
Web of Science

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Figures / Tables (4)