Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-04-22
High Energy Phys.Nucl.Phys. 25 (2001) 1089-1091
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 2 figures
Scientific paper
Hadron and string cascade model (JPCIAE) with the hypothesis without introducing the quark-gluon plasma (QGP), is employed to study the direct photon and $\pi^0$ transverse momentum distributions for central $^{208}$Pb+$^{208}$Pb collisions at 158A GeV/c . JPCIAE model, is based on LUND model, especially on the envent generator PYTHIA, and can be used to simulate the relativistic nucleus-nucleus collisions where PYTHIA is called to deal with hadron-hadron collisions. In our work, the theoretical results of transverse momentum distribution for both the direct photon and the $\pi^0$ particle are lower than the data of WA98 experiment. However, JPCIAE model can ever explain successfully the results of WA80 and WA93 experiments of central S+Au collisions at 200A GeV/c where no evidence of direct photon excess. Having considered the results of WA80 and WA93 experiments can be explained but WA98's can't, that might provide a circumstantial evidence for the possible production of QGP in the high-energy central Pb+Pb collisions.
Liu Zhiyi
Sa Benhao
Zhou Shuhua
No associations
LandOfFree
A Circumstantial Evidence for the Possible Production of QGP in the 158A GeV/c Central Pb+Pb Collisions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Circumstantial Evidence for the Possible Production of QGP in the 158A GeV/c Central Pb+Pb Collisions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Circumstantial Evidence for the Possible Production of QGP in the 158A GeV/c Central Pb+Pb Collisions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1599