Analysis of charged hadron multiplicity distributions at RHIC

XIONG Wei; FENG Sheng-Qin

doi:10.1088/1674-1137/32/8/010

Chinese Physics C> 2008, Vol. 32> Issue(8) : 639-644 DOI: 10.1088/1674-1137/32/8/010

Analysis of charged hadron multiplicity distributions at RHIC

XIONG Wei ,
FENG Sheng-Qin ^,

Abstract
HTML
Reference
Related

PDF

Abstract：
It is demonstrated that with Heinz's collective flow model charged particle distributions at AGS and lower SPS energies (less than 20 GeV/n) , can successfully be analyzed, but that the model fails for the RHIC data. Heinz's model calculation underestimates the tails of the charged particle distributions from RHIC, the discrepancy becoming bigger as the energy increases. To study the multiplicity distributions at RHIC we develop the so-called "Thermalization Component Model'', which is based on Heinz's collective flow model. It is realized that the limitation of phase space of collective flow can be reflected in that of the thermalization region. By comparing the contributions of particle production from the thermalization regions at different energies and different centralities, we can deepen our understanding of the features of collective motion at RHIC.

References

[1]

. Jacobs P, WANG X N. Progress in Particle and Nuclear Physics, 2005, 54(2): 443-5342. Mueller A H. Nucl. Phys. B, 2000, 572: 227-2403. Schnedermann E, Sollfrank J, Heinz U. Phys. Rev. C, 1993,48: 24624. Schnedermann E, Heinz U. Phys. Rev. C, 1993, 47:17385. Blume C. Acta. Phys. Hung. A, 2005, 24: 31-376. Back B B et al. Phys. Rev. Lett., 2004, 93: 0823017. Back B B et al. Phys. Rev. C, 2006, 74: 0219018. Back B B et al. Phys. Rev. Lett., 2001, 87: 1023039. Bearden I G et al. Phys. Rev. Lett., 2002, 88: 20230110. Roland G et al. J. Phys. G, 2004, 30: S1133-S113811. Jipa A. Acta Phys. Hung. A, 2005, 22: 121-13712. Wolschin G. Eur. Phys. J. A, 1999, 5: 8513. FENG Sheng-Qin. Introduction to Multi-hadron Produc-tions at High Energy. Beijing: Beijing Institute of Technol-ogy Press. 2005. 155-164 (in Chinese)14. Bjorken J D. Phys. Rev. D, 1983, 27: 14015. FENG Sheng-Qin, LIU Feng, LIU Lian-Shou. Phys. Rev.C, 2001, 63: 01490116. FENG Sheng-Qin, LIU Feng, LIU Lian-Shou. HEP NP,2002, 26: 1277 (in Chinese)17. FENG Sheng-Qin, YUAN Xian-Bao, SHI Ya-Fei. ModernPhys. Lett. A, 2006, 21(8): 663-67318. YUAN Xian-Bao, FENG Sheng-Qin. HEP NP, 2005, 29:371. (in Chinese)19. Wong C Y. Introduction to High-Energy Heavy-Ion Colli-sions, Singapore: World Scienti c Press, 1994. 24-2620. Afanasiev S V et al. Phys. Rev. C, 2002, 66: 054902

[1]	Shu He , Xiaofeng Luo . Event-by-event efficiency fluctuations and efficiency correction for cumulants of superposed multiplicity distributions in relativistic heavy-ion collision experiments. Chinese Physics C, 2018, 42(10): 104001. doi: 10.1088/1674-1137/42/10/104001
[2]	Jin-Tao Zhu , Guo-Fu Liu , Jun Yang , Xiao-Liang Luo , Lei Zhang , Li-Feng Ji . A new method of charged particle identification based on frequency spectrum analysis. Chinese Physics C, 2016, 40(3): 036202. doi: 10.1088/1674-1137/40/3/036202
[3]	WANG Hong-Min , HOU Zhao-Yu , SUN Xian-Jing . Energy dependent growth of nucleon and inclusive charged hadron distributions. Chinese Physics C, 2015, 39(11): 114105. doi: 10.1088/1674-1137/39/11/114105
[4]	JIANG Zhi-Jin , MA Ke , ZHANG Hai-Li , CAI Liu-Mei . Pseudorapidity distributions of the produced charged particles in nucleus-nucleus collisions at low energies at the BNL relativisticheavy ion collider. Chinese Physics C, 2014, 38(8): 084103. doi: 10.1088/1674-1137/38/8/084103
[5]	ZHANG Dong-Hai , CHEN Yan-Ling , WANG Guo-Rong , LI Wang-Dong , WANG Qing , YAO Ji-Jie , ZHOU Jian-Guo , ZHENG Su-Hua , XU Li-Ling , MIAO Hui-Feng , WANG Peng . Multiplicity fluctuation analysis of target residues in nucleus-emulsion collisions at a few hundred MeV/nucleon. Chinese Physics C, 2014, 38(7): 074001. doi: 10.1088/1674-1137/38/7/074001
[6]	LIANG Song , TAO Jun-Quan , SHEN Yu-Qiao , FAN Jia-Wei , XIAO Hong , CHEN Guo-Ming , CHEN He-Sheng , BIAN Jian-Guo , CHEN Ye , LI Zu-Hao , MENG Xiang-Wei , TANG Zhi-Cheng , WANG Xian-You , WANG Zheng , XU Ming , XU Wei-Wei , YAN Qi , YANG Min , ZHANG Cheng , ZHU Shi-Hai . A method for the separation and reconstructions of charged hadron and neutral hadron from their overlapped showers in an electromagnetic calorimeter. Chinese Physics C, 2013, 37(9): 096202. doi: 10.1088/1674-1137/37/9/096202
[7]	WANG Hong-Min , LIU Jia-Fu , HOU Zhao-Yu , SUN Xian-Jing . Pseudo-rapidity distributions of charged hadrons in pp and pA collisions at the LHC. Chinese Physics C, 2013, 37(8): 084101. doi: 10.1088/1674-1137/37/8/084101
[8]	LONG Hai-Yan , FENG Sheng-Qin . Effects of inelastic (re)scattering processes ss→gg and gg→ss on strange hadron production in pp collisions at RHIC and LHC energies. Chinese Physics C, 2012, 36(7): 616-621. doi: 10.1088/1674-1137/36/7/009
[9]	WEI Xin-Bing , FENG Sheng-Qin . Gluon saturation and pseudo-rapidity distributionsof charged hadrons at RHIC energy regions. Chinese Physics C, 2012, 36(11): 1069-1076. doi: 10.1088/1674-1137/36/11/006
[10]	JIANG Zhi-Jin , SUN Yu-Fen , NI Wei-Xin . Centrality dependences of the pseudorapidity distributions of charged particles in Au+Au collisions at RHIC energies. Chinese Physics C, 2010, 34(8): 1104-1110. doi: 10.1088/1674-1137/34/8/013
[11]	WANG Zeng-Wei , JIANG Zhi-Jin . Charged-particle pseudorapidity distributions in Au+Au collisions at RHIC. Chinese Physics C, 2009, 33(4): 274-280. doi: 10.1088/1674-1137/33/4/007
[12]	FENG Sheng-Qin , DU Xiao-Chao . Dependence of multiplicity and transverse energy distributions on nuclear geometry at RHIC. Chinese Physics C, 2009, 33(S1): 52-54. doi: 10.1088/1674-1137/33/S1/017
[13]	Xie Yigang , Cai Yong . Poisson-Like Shape and Shoulder Structure of Hadron Multiplicity Distributions in e⁺e^- Annihilation at Z⁰ Energy. Chinese Physics C, 1994, 18(S3): 223-234.
[14]	Shen Qixing , Yu Hong . Angular Distributions and Generalized Moment Analysis for the Doubly Radiative Decay J/ψ → γγV. Chinese Physics C, 1992, 16(S3): 253-265.
[15]	Shen Qinxing , Yu Hong . Angular Distributions Analysis for the Hadronic Decay Process. Chinese Physics C, 1992, 16(S4): 401-410.
[16]	Wang Shaosfaun , Zhang Jie , Ye Yunxiu , Xiao Chenguo , Cheng Zhengdong , Zhang Xueqian , Luo Qi . Measurement of Semi-inclusive Charged Particle Pseudorapidity Distributions in pp Collisions at 400 GeY/c. Chinese Physics C, 1991, 15(S4): 331-336.
[17]	Liu Bo , Zhao Weiqin . Rapidity Distribution of Negatively Charged Particles in RHIC. Chinese Physics C, 1991, 15(S2): 159-163.
[18]	Shi Yafei , Wang Zhengqing . Multiplicity Distributions for Different Rapidity Windows in High Energy Collisions. Chinese Physics C, 1991, 15(S4): 389-394.
[19]	Lai Xiaoping , Xie Qiubing , Fang Haiping . The Semi-Inclusive Distributions and the Rapidity Dependence of Multiplicity Distributions in e⁺e^- Annihilation into Two Jets. Chinese Physics C, 1990, 14(S1): 19-26.
[20]	Wang Shaoshun , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Shi Guoshun , Fang Rong , Yang Jie . Multiplicity Distribution of Charged Particles Produced in pp Collisions at 400 GeY/c. Chinese Physics C, 1989, 13(S3): 231-238.

Access

Get Citation

XIONG Wei and FENG Sheng-Qin. Analysis of charged hadron multiplicity distributions at RHIC[J]. Chinese Physics C, 2008, 32(8): 639-644. doi: 10.1088/1674-1137/32/8/010

XIONG Wei and FENG Sheng-Qin. Analysis of charged hadron multiplicity distributions at RHIC[J]. Chinese Physics C, 2008, 32(8): 639-644. doi: 10.1088/1674-1137/32/8/010 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2007-10-04
Revised: 2008-01-22

Article Metric

Article Views(2877)
PDF Downloads(576)
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

Analysis of charged hadron multiplicity distributions at RHIC

Corresponding author: FENG Sheng-Qin,

Received Date: 2007-10-04

Accepted Date: 2008-01-22

Available Online: 2008-08-05

Abstract:

It is demonstrated that with Heinz's collective flow model charged particle distributions at AGS and lower SPS energies (less than 20 GeV/n) , can successfully be analyzed, but that the model fails for the RHIC data. Heinz's model calculation underestimates the tails of the charged particle distributions from RHIC, the discrepancy becoming bigger as the energy increases. To study the multiplicity distributions at RHIC we develop the so-called "Thermalization Component Model'', which is based on Heinz's collective flow model. It is realized that the limitation of phase space of collective flow can be reflected in that of the thermalization region. By comparing the contributions of particle production from the thermalization regions at different energies and different centralities, we can deepen our understanding of the features of collective motion at RHIC.

HTML

Reference (1)

Analysis of charged hadron multiplicity distributions at RHIC

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article