Chinese Physics C > 1999, Vol. 23 > Issue(7): 693-700

Calculation of the Productive Dilepton Spectrum (M≤4GeV/c²) in²³⁸U+²³⁸U Collisions at E_c,m≈200GeV/u

Department of physics, Suzhou Railway Normal College, Suzhou 2150092 Department of Mathematics, Shanghai University, Shanghai 201800

Abstract
HTML
Reference
Related

PDF

Abstract：
In this paper, besides including u,d,s quarks and their anti-quarks the charm quarks and their anti-quarks (cc) were still included in the calculation of flavour kinetics of quarks. Using relativitic hydrodynamics model with the effect of quark flavor kinetics, invariable mass dilepton spectrum of M≤4GeV/c ²has been calculated. The dileptons are eastted from Phase transihon process of an expansion quark matter which is created in collisions of 238U+238U at energy～200GeV/u. The numerical results have been compared with experimental dare of CERN SPS qualitatively. A prelimings conclusion has been given: quark fragmentation and effect of flavour kinetics are the causes of suppression of the peak of J/ψ→μ ⁺+μ ^－.

References

[1]

Kajantie K, kataja M, Mclarran L et al. Phys. Rev., 1986, D34: 811–8212 Masera M. Nucl. Phys., 1995, A590: 93c–102c 3 Bare H W, Friman B L, Knall J et al. Nucl. Phys., 1988, A484: 661–6844 Kajantie K, raitio R, Ruus Kanen P V. Nucl. Phys., 1983, B222: 152–1885 Koch P, Muller B, Rafelski J. Phys. Reports,1986, 142(314): 1676 Li Panlin, Wu Hua, Xu Mengjie. High Energy Physics and Nuclear Physics (in Chinese), 1997, 21:918–925(李盘林, 吴华, 许梦杰. 高能物理与核物理,1997,21:918–9257 Wu hua, Xu Mengjie, Li Panlin. Chinese General Computational Physics (in Chinese), 1999, 16:94(王立联, 许梦杰, 李盘林, 计算物理, 1999,16:94)

[1]	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
[2]	WU Xi-Zhen,TIAN Jun-Long,ZHAO Kai,ZHANG Ying-Xun,LI Zhu-Xia. Study on the formation of the composite system of²³⁸U+²³⁸U. Chinese Physics C, 2009, 33(S1): 30-32.doi:10.1088/1674-1137/33/S1/010
[3]	ZUO Jia-Xu,SORENSEN Paul,CAI Xiang-Zhou,HEINZ Mark,MA Yu-Gang. Particle correlation in p+p collision √s_NN=200 GeV in PYTHIA. Chinese Physics C, 2008, 32(S2): 13-16.
[4]	WANG Yun-Fei,SHAO Feng-Lan,SONG Jun,WEI De-Ming,XIE Qu-Bing. Centrality dependence of p_Tspectra for identified hadrons in Au+Au and Cu+Cu collisions at √s_NN= 200GeV. Chinese Physics C, 2008, 32(12): 976-983.doi:10.1088/1674-1137/32/12/007
[5]	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
[6]	HAN Ran. Polarization of Anti-Lambda in s=200GeV Polarized Proton-Proton Collision. Chinese Physics C, 2007, 31(12): 1189-1191.
[7]	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.
[8]	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.
[9]	S.J.Sanders. Differential Elliptic Flow at Forward Rapidity in 200GeV AuAu Collisions. Chinese Physics C, 2007, 31(12): 1137-1140.
[10]	YU Hong-Wei,CAI Cong-Hai,ZHAO Zhi-Xiang. Theoretical Calculations for p+²³⁸U Reactions. Chinese Physics C, 2005, 29(3): 263-267.
[11]	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.
[12]	HAN Yin-Lu. Theoretical Analysis of Double Differential Cross Sections for n+²³⁸U Reaction. Chinese Physics C, 2004, 28(2): 177-180.
[13]	He Jianjun,Yang Weifan,Yuan Shuanggui,Ma Taotao,Li Zongwei,Xiong Bing,Xu Yanbing. Identification of New Isotope²³⁸Th. Chinese Physics C, 1999, 23(11): 1044-1048.
[14]	REN Guo-Xiao. Measurement of Charge Changing Cross Sections of 200A GeV S and Fragments with Cu Target. Chinese Physics C, 1991, 15(12): 1063-1068.
[15]	CUI Huan-Hua,KE Wei,ZHOU Jian,LV Wei-Chun. STUDY ON THE INTERACTION OF 960A MeV²³⁸U IONS WITH LIGHT NUCLEI. Chinese Physics C, 1989, 13(3): 199-204.
[16]	SHEN Guo-Jin,WANG En-Ke,LI Jia-Rong. THE MECHANISM OF THE HIGH-ENERGY UNEQUI-NUCLEI COLLISIONS AND THE CALCULATIONS OF THE HYDRO-DYNAMICAL MODEL IN THE ENERGY REGION FROM 200A GeV TO 100A TeV. Chinese Physics C, 1989, 13(3): 205-212.
[17]	SHEN Wen-Qing. SIMULATION OF QCASI-FISSION INDUCED BY²³⁸U. Chinese Physics C, 1988, 12(2): 237-245.
[18]	LIU Bo,WANG Ying-Cai. MULTIPLICITY DISTRIBUTIONS OF PRODUCED PARTICLES AND ENERGY LOSS IN PROTON-NUCLEUS COLLISIONS AT 200GeV/c. Chinese Physics C, 1987, 11(2): 231-237.
[19]	REN Guo-Xiao,ZHOU Yin-Zao,HUANG Rong-Qing,CHEN Ming-Yuan. MEASUREMENT ON CROSS SECTION OF HIGH ENERGY IRON NUCLEUS (E≥4GeV/N)-ALUMINIUM NUCLEUS INTERACTIONS. Chinese Physics C, 1984, 8(6): 664-667.
[20]	JING GUI-RU,HUO AN-XIANG,YAN YU-KUI,WANG LI-AN,LI YAN-GUO,SU DENG-JI,MENG XIANG-CHENG,YAO WEI-ZHONG,ZHOU YIN-ZAO,PENG SHAO-HUA,WANG LI-HUI. THE VERTICAL INTEGRATED MOMENTUM SPECTRUM OF THE MUON WITH MOMENTUM LARGER THAN 4 GeV/cAT 3220m ABOVE SEA-LEVEL. Chinese Physics C, 1978, 2(5): 417-422.

Access

Get Citation

Li Panlin, Deng Chengfeng, Wang Lilian and Xu Mengjie. Calculation of the Productive Dilepton Spectrum (M≤4GeV/c ²) in ²³⁸U+ ²³⁸U Collisions at E _c,m≈200GeV/u[J]. Chinese Physics C, 1999, 23(7): 693-700.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1998-02-09
Revised: 1900-01-01

Article Metric

Article Views(3551)
PDF Downloads(496)
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

Calculation of the Productive Dilepton Spectrum (M≤4GeV/c²) in²³⁸U+²³⁸U Collisions at E_c,m≈200GeV/u

Corresponding author:Li Panlin,

Department of physics, Suzhou Railway Normal College, Suzhou 2150092 Department of Mathematics, Shanghai University, Shanghai 201800

Received Date:1998-02-09

Accepted Date:1900-01-01

Available Online:1999-07-05

Abstract:In this paper, besides including u,d,s quarks and their anti-quarks the charm quarks and their anti-quarks (cc) were still included in the calculation of flavour kinetics of quarks. Using relativitic hydrodynamics model with the effect of quark flavor kinetics, invariable mass dilepton spectrum of M≤4GeV/c²has been calculated. The dileptons are eastted from Phase transihon process of an expansion quark matter which is created in collisions of 238U+238U at energy～200GeV/u. The numerical results have been compared with experimental dare of CERN SPS qualitatively. A prelimings conclusion has been given: quark fragmentation and effect of flavour kinetics are the causes of suppression of the peak of J/ψ→μ⁺+μ^－.

HTML

Reference (1)

Calculation of the Productive Dilepton Spectrum (M≤4GeV/c²) in²³⁸U+²³⁸U Collisions at E_c,m≈200GeV/u

Abstract：

References

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article