Direct photons in PHENIX at the RHIC
Journal Article
·
· Journal of Physics. G, Nuclear and Particle Physics
PHENIX results on direct photon production in p+p, d+Au, Cu+Cu and Au+Au collisions are presented. Direct photon yield at high p{sub T} is consistent with NLO pQCD calculations in all systems. In heavy ion collisions at low p{sub T} direct photons exhibit an order of magnitude exponential shape enhancement consistent with thermal emission from quark gluon plasma (QGP). The thermal nature of this enhancement is further confirmed by the large elliptic flow of direct photons below p{sub T} {approx} 5 GeV/c.
- Research Organization:
- Brookhaven National Laboratory (BNL) Relativistic Heavy Ion Collider
- Sponsoring Organization:
- USDOE SC OFFICE OF SCIENCE (SC)
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 1043342
- Report Number(s):
- BNL--96566-2011-JA; KB0201021
- Journal Information:
- Journal of Physics. G, Nuclear and Particle Physics, Journal Name: Journal of Physics. G, Nuclear and Particle Physics Journal Issue: 12 Vol. 38; ISSN 0954-3899; ISSN JPGPED
- Country of Publication:
- United States
- Language:
- English
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