A Circumstantial Evidence for the Possible Production of QGP in the 158A GeV/c Central Pb+Pb Collisions

Zhiyi Liu, Benhao Sa, Shuhua Zhou

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…