Photon radiation from heavy-ion collisions in the $\sqrt{s_{NN}}=19–200\text{GeV}$ regime

Journal Article · Tue Jan 22 00:00:00 EST 2019 · Nuclear Physics. A

DOI:https://doi.org/10.1016/j.nuclphysa.2018.08.005· OSTI ID:1543578

Gale, Charles ^[1]; Jeon, Sangyong ^[1]; McDonald, Scott ^[1]; Paquet, Jean -François ^[2]; Shen, Chun ^[3]

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1. McGill Univ., Montreal, QC (Canada)
2. Duke Univ., Durham, NC (United States)
3. Brookhaven National Lab. (BNL), Upton, NY (United States)

We present calculations of prompt and thermal photon production in Au-Au collisions at $\sqrt{s_{NN}}=19–200\text{GeV}$ GeV. We discuss features of the spacetime profile of the plasma relevant for electromagnetic emission. We highlight how the suppression of prompt photon production at low $\sqrt{s_{NN}}$ can provide a window to measure thermal photons in low collision energies.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States); Duke Univ., Durham, NC (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Univ. of California, Oakland, CA (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC02-05CH11231; FG02-05ER41367; SC0012704
• OSTI ID: 1543578
• Alternate ID(s): OSTI ID: 22889004
• Journal Information: Nuclear Physics. A, Journal Name: Nuclear Physics. A Journal Issue: C Vol. 982; ISSN 0375-9474
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
Electromagnetic radiation
Physics
RHIC Beam Energy Scan
heavy-ion collisions
quark-gluon plasma