Acoplanarity of a Lepton Pair to Probe the Electromagnetic Property of Quark Matter
Journal Article
·
· Physical Review Letters
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Columbia Univ., New York, NY (United States)
- 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
Cited by: 39 works
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