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

LIU Zhi-Yi; SA Ben-Hao; ZHOU Shu-Hua

Chinese Physics C> 2001, Vol. 25> Issue(11) : 1089-1091

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

China Institute of Atomic Energy,Beijing 102413,China

Abstract
HTML
Reference
Related

PDF

Abstract：
Hadron and string cascade model (JPCIAE),based on the hypothesis without introducing the quark gluon plasma(QGP),is employed to study the direct photon and π 0 transverse momentum distributions for central ²⁰⁸Pb+²⁰⁸Pb collisions at 158A GeV/c. The theoretical results of transverse momentum distribution for both the direct photon and the π⁰ 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 there is 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.
Access

Get Citation

LIU Zhi-Yi, SA Ben-Hao and ZHOU Shu-Hua. A Circumstantial Evidence for the Possible Production of QGP in the 158A GeV/c Central Pb+Pb Collisions[J]. Chinese Physics C, 2001, 25(11): 1089-1091.

LIU Zhi-Yi, SA Ben-Hao and ZHOU Shu-Hua. A Circumstantial Evidence for the Possible Production of QGP in the 158A GeV/c Central Pb+Pb Collisions[J]. Chinese Physics C, 2001, 25(11): 1089-1091. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2000-12-25
Revised: 1900-01-01

Article Metric

Article Views(4776)
PDF Downloads(594)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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

Corresponding author: LIU Zhi-Yi,

China Institute of Atomic Energy,Beijing 102413,China

Received Date: 2000-12-25
Accepted Date: 1900-01-01
Available Online: 2001-11-05

Abstract: Hadron and string cascade model (JPCIAE),based on the hypothesis without introducing the quark gluon plasma(QGP),is employed to study the direct photon and π 0 transverse momentum distributions for central ²⁰⁸Pb+²⁰⁸Pb collisions at 158A GeV/c. The theoretical results of transverse momentum distribution for both the direct photon and the π⁰ 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 there is 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.