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

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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.

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[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

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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

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Received: 2011-05-03
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通讯作者: 陈斌, bchen63@163.com

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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.

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

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