Dynamical versus decay photons in A + A collisions at √s=200 A GeV☆

作者: D.K. Srivastava , Bikash Sinha , M. Gyulassy , Xin-Nian Wang

DOI: 10.1016/0370-2693(92)90319-Y

关键词: Nuclear physicsPhotonPlasmaMonte Carlo methodPhysicsRange (particle radiation)Atomic physicsHeavy ionThermalisation

摘要: Abstract Dynamical photons produced via qg→q γ and q → g processes in an equilibrated quark-gluon plasma are calculated a hydrodynamic model for wide range of initial conditions ultra-relativistic heavy ion collisions. Electromagnetic decay the Monte Carlo HIJING including multiple minijet production. If rapid thermalization occurs can be subtracted with high efficiency, dynamical p T >GeV may serve as useful probe plasma.

参考文章(11)
Torbjörn Sjöstrand, Maria van Zijl, A multiple-interaction model for the event structure in hadron collisions Physical Review D. ,vol. 36, pp. 2019- 2041 ,(1987) , 10.1103/PHYSREVD.36.2019
Frank R. Brown, Frank P. Butler, Hong Chen, Norman H. Christ, Zhihua Dong, Wendy Schaffer, Leo I. Unger, Alessandro Vaccarino, On the existence of a phase transition for QCD with three light quarks. Physical Review Letters. ,vol. 65, pp. 2491- 2494 ,(1990) , 10.1103/PHYSREVLETT.65.2491
L. D. McLerran, T. Toimela, Photon and dilepton emission from the quark-gluon plasma: Some general considerations Physical Review D. ,vol. 31, pp. 545- 563 ,(1985) , 10.1103/PHYSREVD.31.545
J. D. Bjorken, Highly relativistic nucleus-nucleus collisions: The central rapidity region Physical Review D. ,vol. 27, pp. 140- 151 ,(1983) , 10.1103/PHYSREVD.27.140
Rudolph C. Hwa, K. Kajantie, Diagnosing Quark Matter by Measuring the Total Entropy and the Photon Or Dilepton Emission Rates Physical Review D. ,vol. 32, pp. 1109- 1118 ,(1985) , 10.1103/PHYSREVD.32.1109
Xin-Nian Wang, Miklos Gyulassy, HIGING: A Monte Carlo model for multiple jet production in pp, pA, and AA collisions. Physical Review D. ,vol. 44, pp. 3501- 3516 ,(1991) , 10.1103/PHYSREVD.44.3501
SIBAJI RAHA, BIKASH SINHA, DILEPTONS AND PHOTONS IN HIGH ENERGY HEAVY ION REACTIONS: A REVIEW International Journal of Modern Physics A. ,vol. 06, pp. 517- 558 ,(1991) , 10.1142/S0217751X91000320
B. Andersson, G. Gustafson, B. Nilsson-Almqvist, A Model for Low p(t) Hadronic Reactions, with Generalizations to Hadron - Nucleus and Nucleus-Nucleus Collisions Nuclear Physics. ,vol. 281, pp. 289- 309 ,(1987) , 10.1016/0550-3213(87)90257-4
M. Neubert, Photon production in ultrarelativistic heavy-ion collisions at 200 GeV/u European Physical Journal C. ,vol. 42, pp. 231- 242 ,(1989) , 10.1007/BF01555862
Joseph Kapusta, Peter Lichard, David Seibert, High-energy photons from quark-gluon plasma versus hot hadronic gas Physical Review D. ,vol. 44, pp. 2774- 2788 ,(1991) , 10.1103/PHYSREVD.44.2774