Low PT Enhancement of Photon Production in 200 A GeV S+ An Collisions

WANG Hui; SA BenHao; TAI An

Chinese Physics C> 2000, Vol. 24> Issue(3) : 220-224

Low PT Enhancement of Photon Production in 200 A GeV S+ An Collisions

China Institute of Atomic Energy, Beijing 102413, China1 Institute of High Energy Physics, CAS, Beijing 100039, China

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A hadron and string cascade model, JPCIAE, which is based on LUND string model, PYTHIA event generator especially, is used to study the photon production of 200 A GeV S + An central collisions. The model takes into account photon produced from the partonic QCD scattering processe, the final-state hadronic interaction, and hadronic decay and deals with them consistently. The results of JPCIAE model reproduce successfully the WA93 data of low P_T enhancement. We have compared the contributions from different decay channels and discussed the role played by rescattering.

References

[1]

Satchel J,Young G R. Annu. Rev. Nucl. Part. Sci.,1992, 42:537 2 Harris J W,Muller B. Annu. Rev. Nucl. Part. Phys.,1996,46:71 3 Kapusta J,Lichard P, Seibert D. Phys. Rev., 1991,D44:2774 (Erratum: Phys. Rev., 1993,D47:4323) 4 Wong Cheuk–Yin,WANG Hui. Phys. Rev.,1998, C58:376 5 Aggarwal M M et al (WA93 Chllaberation). Phys. Rev., 1997,C56: 1160 6 SA BenHao,TAI An, WANG Hui et al. Nucl––th/9803033, Phys. Rev. C in press 7 SA BenHao,Faessler A,TAI An et al. Nucl––th/9809020,J. Phys., 1999,G25: 11238 Cugnon J, Mizutani T, Vandermeulen J. Nucl. Phys., 1981, A352: 505 9 Bertsch G F, Das Gupta S. Phys. Reports, 1988, 160: 18910 SA BenHao, TAI An. Comp. Phys. Commu., 1995,90:121 11 Sjostrand T. Comp. Phys. Commu.,1994,82: 74 12 Albrecht R et al (WA80 Collaboration). Phys. Rev. Lett.,1996,76: 3506 13 LI G Q, Brown G E. Nucl–th/9706076

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[13]	LIU Qing-Jun , GUO Li-Qun , PIAO Xing-Liang . Partonic interactions and two particle transverse momentum correlations in Au + Au collisions at √sNN=130GeV. Chinese Physics C, 2006, 30(6): 485-487.
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[16]	QI XiangRong , HU HaiMing , LI XinHua , HUANG GuangShun , CHEN JiangChuan , HU Tao , JU Xin , LI Jin , MAO ZePu , XUE ShengTian , ZHENG ZhiPeng , ZHOU Li , ZHAO ZhengGuo . R Measurement around s=3.55GeV. Chinese Physics C, 2000, 24(7): 609-615.
[17]	Liu Feng(Y) , Liu Feng . Revisit to Minijets in pp Collisions at s=630GeV. Chinese Physics C, 1998, 22(7): 631-638.
[18]	. Nuclear Fragmentation and Particle Production in Interactions Induced by 10.7A GeV ¹⁹⁷Au at BNL/AGS. Chinese Physics C, 1995, 19(8): 703-712.
[19]	CHEN Ji-Sheng , LI Jia-Rong . PRODUCTION OF LARGE-TRANSVERSE-MOMENTUM PHOTONS AND THE QCD PHASE TRANSITION IN ULTRARELATIVISTIC NUCLEAR COLLISIONS. Chinese Physics C, 1989, 13(8): 689-695.
[20]	XU ZAI-XIN , JIANG YUAN-FANG . POLARIZATION EFFECTS IN LARGE-pr PROMPT PHOTON PRODUCTION. Chinese Physics C, 1983, 7(6): 694-701.

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WANG Hui, SA BenHao and TAI An. Low PT Enhancement of Photon Production in 200 A GeV S+ An Collisions[J]. Chinese Physics C, 2000, 24(3): 220-224.

WANG Hui, SA BenHao and TAI An. Low PT Enhancement of Photon Production in 200 A GeV S+ An Collisions[J]. Chinese Physics C, 2000, 24(3): 220-224. shu

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Received: 1999-02-08
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Low PT Enhancement of Photon Production in 200 A GeV S+ An Collisions

Corresponding author: WANG Hui,

China Institute of Atomic Energy, Beijing 102413, China1 Institute of High Energy Physics, CAS, Beijing 100039, China

Received Date: 1999-02-08

Accepted Date: 1900-01-01

Available Online: 2000-03-05

Abstract: A hadron and string cascade model, JPCIAE, which is based on LUND string model, PYTHIA event generator especially, is used to study the photon production of 200 A GeV S + An central collisions. The model takes into account photon produced from the partonic QCD scattering processe, the final-state hadronic interaction, and hadronic decay and deals with them consistently. The results of JPCIAE model reproduce successfully the WA93 data of low P_T enhancement. We have compared the contributions from different decay channels and discussed the role played by rescattering.

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Low PT Enhancement of Photon Production in 200 A GeV S+ An Collisions

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