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Chinese Physics C> 2008, Vol. 32> Issue(12) : 976-983 DOI: 10.1088/1674-1137/32/12/007

Centrality dependence of pT spectra for identified hadrons in Au+Au and Cu+Cu collisions at √sNN= 200GeV

  • The centrality dependence of transverse momentum spectra for identified hadrons at midrapidity in Au+Au collisions at √sNN= 200GeV is systematically studied in a quark combination model. The pT spectra of π±, K±, p(p) and Λ(Λ) in different centrality bins and the nuclear modification factors (RCP) for these hadrons are calculated. The centrality dependence of the average collective transverse velocity 〈β(r)〉 for the hot and dense quark matter is obtained in Au+Au collisions, and it is applied to a relative smaller Cu+Cu collision system. The centrality dependence of pT spectra and the RCP for π0, Ks0 and Λ in Cu+Cu collisions at √sNN= 200GeV are well described. The results show that 〈β(r)〉 is only a function of the number of participants Npart and it is independent of the collision system.

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    [1] . Reisdorf W, Ritter H G. Annu. Rev. Nucl. Part. Sci., 1997,47: 663-7092. Sorge H. Phys. Rev. Lett., 1999, 82: 2048-20513. Kolb P, Sollfrank J, Heinz U. Phys. Lett. B, 1999, 459:667-6724. Teaney D, Shuryak E V. Phys. Rev. Lett., 1999, 83: 4951-49545. Kolb P, Sollfrank J, Heinz U. Phys. Rev. C, 2000, 62:0549096. Voloshin S A, Poskanzer A M. Phys. Lett. B, 2000, 474:27-327. Greco V, Ko C M, Levai P. Phys. Rev. C, 2003, 68: 0349048. Fries R J, Muller B, Nonaka C et al. Phys. Rev. C, 2003,68: 0449029. Armesto N, Salgado C A, Wiedemann U A. Phys. Rev.Lett., 2004, 93: 24230110. WANG X N, Gyulassy M. Phys. Rev. Lett. C, 1992, 68:1480-148311. Armesto N, Salgado C A, Wiedemann U A. Phys. Rev. C,2005, 72: 06491012. Adare A et al. (PHENIX Collaboration). Phys. Rev. Lett.,2007, 98: 16230113. Adare A et al. (PHENIX Collaboration). Phys. Rev. Lett.,2003, 91: 18230114. Enokizono A (the PHENIX Collaboration). Nucl. Phys. A,2007, 787: 37c-43c15. Fries R J, Müller B, Nonaka C et al. Phys. Rev. Lett., 2003,90: 20230316. Greco V, Ko C M, Levai P. Phys. Rev. Lett., 2003, 90:20230217. Hwa R C, YANG C B. Phys. Rev. C, 2003, 67: 03490218. Voloshin S A. Nucl. Phys. A, 2003, 715: 379c-388c19. Molnar D, Voloshin S A. Phys. Rev. Lett., 2003, 91: 09230120. YAO T, XIE Q B, SHAO F L. Chin. Phys. C, 2008, 32:356-36221. Hwa R C, YANG C B. Phys. Rev. C, 2004, 70: 02490522. SHAO F L, YAO T, XIE Q B. Phys. Rev. C, 2007, 75:03490423. Hwa R C, Tian Z. Phys. Rev. C, 2005, 72: 02490824. SHAO F L, XIE Q B, WANG Q. Phys. Rev. C, 2005, 71:04490325. Arsene I et al. (BRAHMS Collaboration). Phys. Rev. C,2005, 72: 01490826. Adler S S et al. (PHENIX Collaboration). Phys. Rev. C,2004, 69: 03490927. Schnedermann E, Heinz U. Phys. Rev. Lett., 1992, 69:2908-291128. Kolb P F, Rapp R. Phys. Rev. C, 2003, 67: 04490329. Nonaka C, Bass S A. Phys. Rev. C, 2007, 75: 01490230. Heinz U, Kolb P. Nucl. Phys. A, 2002, 702: 269-28031. Huovinen P. Nucl. Phys. A, 2005, 761: 296-31232. Prorok D. Phys. Rev. C, 2006, 73: 06490133. Pratt S, Pal S. Phys. Rev. C, 2005, 71: 01490534. XIE Q B, LIU X M. Phys. Rev. D, 1988, 38: 2169-217735. LIANG Z T, XIE Q B. Phys. Rev. D, 1991, 43: 751-75936. WANG Q, XIE Q B. J. Phys. G, 1995, 21: 897-90437. ZHAO J Q, WANG Q, XIE Q B. Sci. Sin. A, 1995, 38:1474-148738. WANG Q, SI Z G, XIE Q B. Int. J. Mod. Phys. A, 1996,11: 5203-521039. SI Z G, XIE Q B, WANG Q. Commun. Theor. Phys., 1997,28: 85-9440. SONG J, SHAO F L, XIE Q B et al. The Inuence of Net-Quarks on the Yields and Rapidity Spectra of Identi edHadrons. arXiv: hep-ph/0801.091841. Sjostrand T, Eden P, Friberg C et al. Comput. Phys. Commun.,2001, 135: 238-25942. Abelev B I et al. (STAR Collaboration). Phys. Rev. Lett.,2007, 99: 11230143. Schnedermann E, Sollfrank J, Heinz U. Phys. Rev. C, 1993,48: 2462-247544. Sakaguchi T. (PHENIX Collaboration). Contributions for Quark Matter 2006 Poster Session. Shanghai, China, 14-20. November, 2006. arXiv: nucl-ex/070302745. Adams J et al. (STAR, STAR-RICH Collaborations). nuclex/060104246. CHEN J H, JIN F, Gangadharan D et al. Parton Distributionat Hadronization from Bulk Dense Matter Producedat RHIC. arXiv: 0801.2265[nucl-th]47. SONG J, SHAO F L, XIE Q B et al. Rapidity Dependenceof Hadron Production in Central Au+Au Collisions at √span style="border-top: 1px solid; padding-top: 0px;"sNN/span =200 GeV. arXiv: nucl-th/070309548. Abelev B I et al. (STAR Collaboration). Phys. Rev. Lett.,2006, 97: 15230149. Admas J et al. (STAR Collaboration). Phys. Rev. Lett,2006, 98: 06230150. Adams J et al. (STAR Collaboration). Phys. Rev. Lett.,2003, 92: 05230251. Timmins A R. (STAR Collaboration). Quark Matter 2006Proceedings. Shanghai, China, 14-20 November, 2006.arXiv: nucl-ex/0708.329052. Hollis R S. (STAR Collaboration). Proceedings for the LakeLouise Winter Institute 2007. Alberta, Canada, 19-24February 2007. arXiv: nucl-ex/0705.068653. Bekele S. (BRAHMS Collaboration). arXiv: nucl-ex/060101154. LIANG Z T, WANG X N. Phys. Rev. Lett., 2005, 94:10230155. Abelev B I et al. (STAR Collaboration). Phys. Rev. C,2007, 76: 02491556. Back B B et al. (PHOBOS Collaboration). Phys. Rev.Lett., 2002, 89: 222301

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WANG Yun-Fei, SHAO Feng-Lan, SONG Jun, WEI De-Ming and XIE Qu-Bing. Centrality dependence of pT spectra for identified hadrons in Au+Au and Cu+Cu collisions at √sNN= 200GeV[J]. Chinese Physics C, 2008, 32(12): 976-983. doi: 10.1088/1674-1137/32/12/007
WANG Yun-Fei, SHAO Feng-Lan, SONG Jun, WEI De-Ming and XIE Qu-Bing. Centrality dependence of pT spectra for identified hadrons in Au+Au and Cu+Cu collisions at √sNN= 200GeV[J]. Chinese Physics C, 2008, 32(12): 976-983.  doi: 10.1088/1674-1137/32/12/007 shu
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Received: 2008-04-01
Revised: 2008-06-11
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Centrality dependence of pT spectra for identified hadrons in Au+Au and Cu+Cu collisions at √sNN= 200GeV

    Corresponding author: SHAO Feng-Lan,
  • Received Date: 2008-04-01
  • Accepted Date: 2008-06-11
  • Available Online: 2008-12-05

Abstract: 

The centrality dependence of transverse momentum spectra for identified hadrons at midrapidity in Au+Au collisions at √sNN= 200GeV is systematically studied in a quark combination model. The pT spectra of π±, K±, p(p) and Λ(Λ) in different centrality bins and the nuclear modification factors (RCP) for these hadrons are calculated. The centrality dependence of the average collective transverse velocity 〈β(r)〉 for the hot and dense quark matter is obtained in Au+Au collisions, and it is applied to a relative smaller Cu+Cu collision system. The centrality dependence of pT spectra and the RCP for π0, Ks0 and Λ in Cu+Cu collisions at √sNN= 200GeV are well described. The results show that 〈β(r)〉 is only a function of the number of participants Npart and it is independent of the collision system.

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