Hadronic rapidity spectra in heavy ion collisions at SPS and AGS energies in a quark combination model

SUN Le-Xue; WANG Rui-Qin; SONG Jun; SHAO Feng-Lan

doi:10.1088/1674-1137/36/1/009

Chinese Physics C> 2012, Vol. 36> Issue(1) : 55-61 DOI: 10.1088/1674-1137/36/1/009

Hadronic rapidity spectra in heavy ion collisions at SPS and AGS energies in a quark combination model

Abstract
HTML
Reference
Related

PDF

Abstract：
The quark combination mechanism of hadron production is applied to nucleus-nucleus collisions at the CERN Super Proton Synchrotron (SPS) and the BNL Alternating Gradient Synchrotron (AGS). The rapidity spectra of identified hadrons and their spectrum widths are studied. The data of π^-, K^±, φ, Λ, Λ, Ξ^- and Ξ⁺ at 80 and 40 A GeV, and in particular at 30 and 20 A GeV where the onset of deconfinement is suggested to happen, are consistently described by the quark combination model. However, at AGS 11.6 A GeV below the onset, the π^±, K^± and Λ spectra cannot be simultaneously explained, indicating the disappearance of the intrinsic correlation of their production in the constituent quark level. The collision-energy dependence of the rapidity spectrum widths of the constituent quarks, and the strangeness of the hot and dense quark matter produced in heavy ion collisions, are obtained and discussed.

References

[1]

Adams J et al. (STAR collaboration). Nucl. Phys. A, 2005, 757: 1022 Adcox K et al. (PHENIX collaboration). Nucl. Phys. A, 2005, 757: 1843 Arsene I et al. (BRAHMS collaboration). Nucl. Phys. A, 2005, 757: 14 Back B B et al. (PHOBOS collaboration). Nucl. Phys. A, 2005, 757: 285 Alt C et al. (NA49 collaboration). Phys. Rev. C, 2008, 77: 0249036 Adare A et al. (PHENIX collaboration). Phys. Rev. Lett., 2007, 98: 1623017 Adcox K et al. (PHENIX collaboration). Phys. Rev. Lett., 2002, 88: 2423018 Greco V, Ko C M, L evai P. Phys. Rev. Lett., 2003, 90: 2023029 Fries R J, Muller B, Nonaka C, Bass S A. Phys. Rev. Lett., 2003, 90: 20230310 D enes Moln ar, Sergei A Voloshin. Phys. Rev. Lett., 2003, 91: 09230111 SONG J, SHAO F L, XIE Q B. Int. J. Mod. Phys. A, 2009, 24: 116112 SHAO C E, SONG J, SHAO F L, XIE Q B. Phys. Rev. C, 2009, 80: 01490913 SHAO F L, XIE Q B, WANG Q. Phys. Rev. C, 2005, 71: 04490314 SHAO F L, YAO T, XIE Q B. Phys. Rev. C, 2007, 75: 03490415 YAO T, ZHOU W, XIE Q B. Phys. Rev. C, 2008, 78: 06491116 WANG Y F, SHAO F L, SONG J, WEI D M, XIE Q B. Chin. Phys. C (HEP NP), 2008, 32: 97617 SONG J, LIANG Z T, LIU Y X, SHAO F L, WANG Q. Phys. Rev. C, 2010, 81: 05790118 HAN W, LI S Y, SHANG Y H, SHAO F L, YAO T. Phys. Rev. C, 2009, 80: 03520219 Bearden I G et al. (BRAHMS collaboration). Phys. Rev. Lett., 2004, 93: 10230120 Alt C et al. (NA49 collaboration). Presented at Critical Point and Onset of Decon nement 4th International Workshop, 2007, PoSCPOD07, 024. arXiv: nucl-ex, 2007, 0709.3030v121 Afanasiev S V et al. (NA49 collaboration). Phys. Rev. C, 2002, 66: 05490222 Afanasiev S V et al. (NA49 collaboration). Phys. Lett. B, 2000, 491: 5923 Alt C et al. (NA49 collaboration). Phys. Rev. C, 2008, 78: 03491824 Mischke A (NA49 collaboration). Nucl. Phys. A, 2003, 715: 453c25 Alt C et al. (NA49 collaboration). Phys. Rev. C, 2008, 78: 044907 and references therein26 CHEN J H et al. Phys. Rev. C, 2008, 78: 03490727 Lacasse R et al. (E877 collaboration). Nucl. Phys. A, 1996, 610: 153c28 Ahle L et al. (E802 collaboration). Phys. Rev. C, 1999, 59: 217329 Ahle L et al. (E802 collaboration). Phys. Rev. C, 1998, 58: 352330 Ahle L et al. (E802 collaboration). Phys. Rev. C, 1998, 57: R46631 Albergo S et al. (E896 collaboration). Phys. Rev. Lett., 2002, 88: 06230132 Barrette J et al. (E877 collaboration). Phys. Rev. C, 2000, 63: 014902

[1]	Ya-Hui Chen , Fu-Hu Liu , Edward K. Sarkisyan-Grinbaum . Event patterns from negative pion spectra in proton-proton and nucleus-nucleus collisions at SPS. Chinese Physics C, 2018, 42(10): 104102. doi: 10.1088/1674-1137/42/10/104102
[2]	Ya-Fei Guo , Peng-Hui Chen , Fei Niu , Zhao-Qing Feng . Isospin effect in peripheral heavy-ion collisions at Fermi energies. Chinese Physics C, 2018, 42(12): 124106. doi: 10.1088/1674-1137/42/12/124106
[3]	Ze-Fang Jiang , C. B. Yang , Chi Ding , Xiang-Yu Wu . Pseudo-rapidity distribution from a perturbative solution of viscous hydrodynamics for heavy ion collisions at RHIC and LHC. Chinese Physics C, 2018, 42(12): 123103. doi: 10.1088/1674-1137/42/12/123103
[4]	Feng-Lan Shao , Jun Song , Rui-Qin Wang , Mao-Sheng Zhang . Energy dependence of resonance production in relativistic heavy ion collisions. Chinese Physics C, 2017, 41(1): 014101. doi: 10.1088/1674-1137/41/1/014101
[5]	A-Meng Zhao , Yuan-Mei Shi , Jian-Feng Li , Hong-Shi Zong . QCD equation of state for heavy ion collisions. Chinese Physics C, 2017, 41(10): 103101. doi: 10.1088/1674-1137/41/10/103101
[6]	Xiao-Ji Zhang , Wen-Jun Guo , Xian-Jie Li , Kuo Wang . Study of entropy in intermediate-energy heavy ion collisions. Chinese Physics C, 2016, 40(3): 034103. doi: 10.1088/1674-1137/40/3/034103
[7]	Yang Zhong , Chun-Bin Yang , Xu Cai , Sheng-Qin Feng . Chiral electric field in relativistic heavy-ion collisions at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider. Chinese Physics C, 2016, 40(8): 084103. doi: 10.1088/1674-1137/40/8/084103
[8]	WANG Yang-Yang , ZHAO Lin-Jie , YUAN Zhong-Sheng , ZHANG Dan-Dan , FANG Wei , XU Ming-Mei . System size in relativistic heavy ion collisions. Chinese Physics C, 2011, 35(3): 264-268. doi: 10.1088/1674-1137/35/3/010
[9]	Bhaghyesh , K. B. Vijaya Kumar , Antony Prakash Monteiro . Heavy quarkonia spectra and their decays in a relativistic quark model. Chinese Physics C, 2011, 35(11): 997-1003. doi: 10.1088/1674-1137/35/11/003
[10]	XIE Wen-Jie , YANG De , WANG Cui-Ping , WANG Zhi-Gang . Transverse mass distributions in central heavy-ion collisions at high energies. Chinese Physics C, 2011, 35(4): 355-362. doi: 10.1088/1674-1137/35/4/007
[11]	LE Tian , XU Ming-Mei , WU Yuan-Fang . Centrality and energy dependence of rapidity correlation patterns in relativistic heavy ion collisions. Chinese Physics C, 2011, 35(3): 259-263. doi: 10.1088/1674-1137/35/3/009
[12]	GUO Feng-Kun . Heavy quark spin symmetry and heavy flavor hadronic molecules. Chinese Physics C, 2010, 34(9): 1294-1297. doi: 10.1088/1674-1137/34/9/027
[13]	XIE Wen-Jie . Transverse mass distributions of protons produced in heavy-ion collisions at high energies. Chinese Physics C, 2010, 34(11): 1717-1723. doi: 10.1088/1674-1137/34/11/010
[14]	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
[15]	KE Hong-Wei , XU Ming-Mei , LIU Lian-Shou . Critical phenomena in a disc-percolation model and their application to relativistic heavy ion collisions. Chinese Physics C, 2009, 33(10): 854-859. doi: 10.1088/1674-1137/33/10/007
[16]	HUANG Yan-Ping , WU Yuan-Fang . Centrality, azimuthal and rapidity dependence of two-particle transverse-momentum correlation in relativistic heavy ion collisions. Chinese Physics C, 2009, 33(4): 281-284. doi: 10.1088/1674-1137/33/4/008
[17]	LIU Fu-Hu , SUN Yan , DUAN Mai-Ying , LI Jun-Sheng . Emissions of fragments and mesons produced in heavy-ion collisions at CSR and related energies. Chinese Physics C, 2008, 32(S2): 24-28.
[18]	Liu Jianye , Zhang Shaoguang . Dynamics Study on the Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 1995, 19(S1): 103-109.
[19]	Zhu Quanling , Ge Lingxiao , Zhang Xiaodong . Isospin Effects on Dynamics of Heavy Ion Collisions. Chinese Physics C, 1994, 18(S3): 301-306.
[20]	Zhuang Pengfei , Liu Lianshou . Estimation of the Maximum Energy Density in High Energy Heavy Ion Collisions and the Space-time Region for the Formation of Quark Matter. Chinese Physics C, 1991, 15(S3): 297-305.

Access

Get Citation

SUN Le-Xue, WANG Rui-Qin, SONG Jun and SHAO Feng-Lan. Hadronic rapidity spectra in heavy ion collisions at SPS and AGS energies in a quark combination model[J]. Chinese Physics C, 2012, 36(1): 55-61. doi: 10.1088/1674-1137/36/1/009

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2011-05-03
Revised: 2011-05-03

Article Metric

Article Views(2333)
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

Hadronic rapidity spectra in heavy ion collisions at SPS and AGS energies in a quark combination model

Corresponding author: SHAO Feng-Lan,

Received Date: 2011-05-03

Accepted Date: 2011-05-03

Available Online: 2012-01-05

Abstract: The quark combination mechanism of hadron production is applied to nucleus-nucleus collisions at the CERN Super Proton Synchrotron (SPS) and the BNL Alternating Gradient Synchrotron (AGS). The rapidity spectra of identified hadrons and their spectrum widths are studied. The data of π^-, K^±, φ, Λ, Λ, Ξ^- and Ξ⁺ at 80 and 40 A GeV, and in particular at 30 and 20 A GeV where the onset of deconfinement is suggested to happen, are consistently described by the quark combination model. However, at AGS 11.6 A GeV below the onset, the π^±, K^± and Λ spectra cannot be simultaneously explained, indicating the disappearance of the intrinsic correlation of their production in the constituent quark level. The collision-energy dependence of the rapidity spectrum widths of the constituent quarks, and the strangeness of the hot and dense quark matter produced in heavy ion collisions, are obtained and discussed.

HTML

Reference (1)

Hadronic rapidity spectra in heavy ion collisions at SPS and AGS energies in a quark combination model

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article