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

Li Panlin; Deng Chengfeng; Wang Lilian; Xu Mengjie

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

Calculation of the Productive Dilepton Spectrum (M≤4GeV/c²) in ²³⁸U+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/c² has 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]	Abdel Magied DIAB . Charmed meson structure across crossover from SU(4) Polyakov quark meson model with isospin asymmetry. Chinese Physics C, 2026, 50(1): 013101. doi: 10.1088/1674-1137/ae042d
[2]	. ³H and ³He nuclei production in a combined thermal and coalescence framework for heavy-ion collisions in the few-GeV energy regime. Chinese Physics C, 2026, 50(1): 014104. doi: 10.1088/1674-1137/ae099a
[3]	Zetian Li , Ning Liu , Bin Zhu . Interplay of 95 GeV Diphoton Excess and Dark Matter in Supersymmetric Triplet Model. Chinese Physics C, 2026, 50(3): 1-11.
[4]	Manpreet Kaur , Sushil Kumar , Sukhjeet Singh , A. K. Jain . Signature splitting in three-quasineutron rotational band 3/2[521]_ν$\otimes $1/2[660]_ν$\otimes $1/2[660]_νof ¹⁵⁵Dy. Chinese Physics C, 2025, 49(10): 104103. doi: 10.1088/1674-1137/ade95e
[5]	Che-Hao Liu , Van Que Tran , Qiaoyi Wen , Fanrong Xu , Tzu-Chiang Yuan . New contributions to b → sγ in the minimal G2HDM. Chinese Physics C, 2025, 49(8): 083107. doi: 10.1088/1674-1137/add873
[6]	Yu-xin Cheng , De-hao Zhao , Yue-yang Shao , Li Gong , Tao Wang , Xiao-shen Kang . SU(3) analysis for B(E2) anomaly. Chinese Physics C, 2025, 49(10): 104105. doi: 10.1088/1674-1137/aded05
[7]	Muhammad Farhan Taseer , Subhash Singha . Impact of particle production mechanisms on pseudorapidity distribution and directed flow in Au+Au and Cu+Cu collisions at ${ \sqrt{{\boldsymbol s}_{\boldsymbol{ NN}}}}$ = 19.6 GeV using AMPT model. Chinese Physics C, 2025, 49(10): 104101. doi: 10.1088/1674-1137/ade660
[8]	F. Alemanno , Q. An , P. Azzarello , F. C. T. Barbato , P. Bernardini , X. J. Bi , H. V. Boutin , I. Cagnoli , M. S. Cai , E. Casilli , E. Catanzani , J. Chang , D. Y. Chen , J. L. Chen , Z. F. Chen , Z. X. Chen , P. Coppin , M. Y. Cui , T. S. Cui , Y. X. Cui , I. De Mitri , F. de Palma , A. Di Giovanni , T. K. Dong , Z. X. Dong , G. Donvito , J. L. Duan , K. K. Duan , R. R. Fan , Y. Z. Fan , F. Fang , K. Fang , C. Q. Feng , L. Feng , J. M. Frieden , P. Fusco , M. Gao , F. Gargano , E. Ghose , K. Gong , Y. Z. Gong , D. Y. Guo , J. H. Guo , S. X. Han , Y. M. Hu , G. S. Huang , X. Y. Huang , Y. Y. Huang , M. Ionica , L. Y. Jiang , Y. Z. Jiang , W. Jiang , J. Kong , A. Kotenko , D. Kyratzis , S. J. Lei , M. B. Li , W. H. Li , W. L. Li , X. Li , X. Q. Li , Y. M. Liang , C. M. Liu , H. Liu , J. Liu , S. B. Liu , Y. Liu , F. Loparco , C. N. Luo , M. Ma , P. X. Ma , T. Ma , X. Y. Ma , G. Marsella , M. N. Mazziotta , D. Mo , Y. Nie , X. Y. Niu , A. Parenti , W. X. Peng , X. Y. Peng , C. Perrina , E. Putti-Garcia , R. Qiao , J. N. Rao , Y. Rong , R. Sarkar , P. Savina , A. Serpolla , Z. Shangguan , W. H. Shen , Z. Q. Shen , Z. T. Shen , L. Silveri , J. X. Song , H. Su , M. Su , H. R. Sun , Z. Y. Sun , A. Surdo , X. J. Teng , A. Tykhonov , G. F. Wang , J. Z. Wang , L. G. Wang , S. Wang , X. L. Wang , Y. F. Wang , Y. Wang , D. M. Wei , J. J. Wei , Y. F. Wei , D. Wu , J. Wu , S. S. Wu , X. Wu , Z. Q. Xia , Z. Xiong , E. H. Xu , H. T. Xu , J. Xu , Z. H. Xu , Z. L. Xu , Z. Z. Xu , G. F. Xue , H. B. Yang , P. Yang , Y. Q. Yang , H. J. Yao , M. Y. Yan , Y. H. Yu , Q. Yuan , C. Yue , J. J. Zang , S. X. Zhang , W. Z. Zhang , Y. Zhang , Y. Zhang , Y. J. Zhang , Y. L. Zhang , Y. P. Zhang , Y. Q. Zhang , Z. Zhang , Z. Y. Zhang , C. Zhao , H. Y. Zhao , X. F. Zhao , C. Y. Zhou , Y. Zhu , (DAMPE Collaboration) . Measurement of separate electron and positron spectra from 10 to 20 GeV with the geomagnetic field on DAMPE. Chinese Physics C, 2025, 49(11): 115001. doi: 10.1088/1674-1137/adfa04
[9]	xxx xx . Evaluation of the moments of inertia of forced split fragments for nuclei ²³²Th (n,f) and ²³⁸U (n,f). Chinese Physics C, 2025, 49(): 1-15.
[10]	GUO Yun-Jun , HE Kang-Lin . Muon Identification Using the Efficiencies Ratio Method at BESⅡ. Chinese Physics C, 2007, 31(11): 1050-1055.
[11]	YE Wei . Possible Dependence of Dissipation Strength on Angular Momentum. Chinese Physics C, 2006, 30(8): 759-760.
[12]	SHEN Shui-Fa , YU Xiao-Han . Decay of ⁸³Sr and Discussion of Its Daughter's Band Structures. Chinese Physics C, 2004, 28(S1): 78-80.
[13]	Medina Ablikim , HUANG Wei-Cheng , . New Realization of N=2 Supersymmetric QuantumMechanics and Shape Invariance. Chinese Physics C, 2002, 26(4): 338-345.
[14]	Guo Hua . In-medium QMC Model Parameters and Quark Condensation in Nuclear Matter. Chinese Physics C, 1999, 23(5): 459-468.
[15]	Chen Zhongqiu , Shao Changgui , Ma Weichuan . Calculation of Wilson Loop Functionals for Classical and Quantum Gravities. Chinese Physics C, 1998, 22(3): 217-224.
[16]	Yang Jianjun , Ma Boqiang , Li Guanglie . Non-perturbative Quark Propagator and the Study of the Non-trivial Q² Dependence in the Nucleon Structure Functions. Chinese Physics C, 1997, 21(2): 146-156.
[17]	Li Yangguo . Antiproton -Nucleus Charge Exchange Reaction and Inelastic Scattering. Chinese Physics C, 1996, 20(11): 1021-1027.
[18]	BES Collaboration . Experimental Study of Resonance f₂(1270) in the J/ψ Hadronic Decay. Chinese Physics C, 1993, 17(2): 97-106.
[19]	SANG Jian-Ping , LIU Chao-Shan , LIU Yong . Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88～90. Chinese Physics C, 1991, 15(2): 150-157.
[20]	Sa Ben-hao , Zhang Xi-zhen , Li Zhu-xia , Shi Yi-jin . A PRIMARY RESEARCH OF THE PHONON RENORMALIZATION OF NUCLEAR FIELD THEORY. Chinese Physics C, 1980, 4(3): 398-400.

Access

Get Citation

Li Panlin, Deng Chengfeng, Wang Lilian and Xu Mengjie. Calculation of the Productive Dilepton Spectrum (M≤4GeV/c²) 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(3288)
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) in ²³⁸U+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/c² has 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) in ²³⁸U+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

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

Corresponding author: Li Panlin,

HTML

目录