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

Abstract
HTML
Reference
Related

PDF

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.

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

[1]	Y. J. Ye , J. H. Chen , Y. G. Ma , S. Zhang , C. Zhong . Ω and φ in Au+Au collisions at sqrt(S_NN)=200 and 11.5 GeV from a multiphase transport model. Chinese Physics C, 2017, 41(8): 084101. doi: 10.1088/1674-1137/41/8/084101
[2]	WANG Mei-Juan , CHEN Gang , WU Yuan-Fang . Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at ^sNN=200 GeV in AMPT model. Chinese Physics C, 2013, 37(1): 014104. doi: 10.1088/1674-1137/37/1/014104
[3]	LIU Fu-Ming , Tetsufumi Hirano , Klaus Werner , ZHU Yan . Elliptic flow of direct photons in Au+Au collisions at 200 GeV. Chinese Physics C, 2010, 34(9): 1433-1435. doi: 10.1088/1674-1137/34/9/063
[4]	K. I. Beloborodov , A. V. Berdyugin , A. A. Botov , V. B. Golubev , T. V. Dimova , V. P. Druzhinin , A. G. Kharlamov , D. P. Kovrizhin , I. A. Koop , A. A. Korol , S. V. Koshuba , A. E. Obrazovsky , E. V. Pakhtusova , D. A. Shtol , S. I. Serednyakov , Z. K. Silagadze , A. N. Skrinsky , Yu. A. Tikhonov , Yu. M. Shatunov , A. V. Vasil'ev . Study of the process e⁺e^－→π⁺π^－π⁰π⁰ at energies √s<1 GeV. Chinese Physics C, 2010, 34(6): 680-685. doi: 10.1088/1674-1137/34/6/012
[5]	SHAO Feng-Lan , SONG Jun , XIE Qu-Bing . Rapidity dependence of hadron p_T spectra in central Au+Au collisions at √s_NN= 200 GeV. Chinese Physics C, 2009, 33(6): 481-486. doi: 10.1088/1674-1137/33/6/015
[6]	DONG Ya-Fei , JIANG Zhi-Jin , WANG Zeng-Wei . Pseudorapidity distribution of multiplicity in Au+Au collisions at √s_NN=200GeV. Chinese Physics C, 2008, 32(4): 259-263. doi: 10.1088/1674-1137/32/4/004
[7]	TANG Ze-Bo . Spin Alignment of Vector Mesons K^*0(892) and φ(1020) in Au+Au and p+p Collsions at s_NN=200GeV. Chinese Physics C, 2007, 31(12): 1192-1195.
[8]	WANG Ru-Min , LU Gong-Ru , WANG En-Ke , YANG Ya-Dong . Probe the R-Parity Violating Supersymmetry Effects in the B0s—B0s Mixing. Chinese Physics C, 2007, 31(4): 332-336.
[9]	XU Yi-Chun , SHAO Ming , ZHANG Zi-Ping . Simulation Study on the Splitting Effect of Transverse Mass Spectra in p+p Collisions at √S=200GeV Using PYTHIA. Chinese Physics C, 2007, 31(6): 538-542.
[10]	Kentaro Miki . Elliptic Flow Measurement of Direct Photon in s_NN=200GeV Au+Au Collisions at RHIC-PHENIX. Chinese Physics C, 2007, 31(12): 1174-1176.
[11]	FENG Qi-Chun , ZHANG Jing-Bo , HUO Lei , ZHANG Wei-Ning . The Radius Dependence of Elliptic Flow in Au+Au Non-Central Collisions at RHIC Energy. Chinese Physics C, 2006, 30(7): 633-637.
[12]	LIU Xi-Ming . Anti-particles-to-Particles Ratios in Au+Au Collisions at √S_NN=130GeV. Chinese Physics C, 2006, 30(5): 435-440.
[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.
[14]	LU GoNG-Ru , WANG Ru-Min , YANG Ya-Dong . Analysis of the Annihilation Decays B0s,d→J/ψ γ with QCD Factorization. Chinese Physics C, 2005, 29(3): 232-236.
[15]	SHAN Qing , WU Jian , WANG Xiao-Lian , CHEN Hong-Fang , ZHANG Yi-Fei , ZHANG Zi-Ping , SHAO Ming . Upper Limit of the Yield of Di-Omega in Central Au-Au Collision at Snn=200GeV with HIJING. Chinese Physics C, 2005, 29(12): 1146-1149.
[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.

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(2757)
PDF Downloads(592)
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

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.

HTML

Reference (1)

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

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article