| NUCLEAR PHYSICS |
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Dependence of Elliptic Flow on Transverse Momentum in √sNN=200 GeV Au-Au and √sNN=2.76 TeV Pb-Pb Collisions |
| LI Bao-Chun1, FU Yuan-Yuan1, WANG Li-Li2, WANG Er-Qin1, WEN Xin-Jian1, LIU Fu-Hu1 |
1Department of Physics and Institute of Theoretical Physics, Shanxi University, Taiyuan 030006
2Department of Mathematics, Business College of Shanxi University, Taiyuan 030031 |
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| Cite this article: |
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LI Bao-Chun, FU Yuan-Yuan, WANG Li-Li et al 2012 Chin. Phys. Lett. 29 072501 |
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Abstract We investigate the dependence of elliptic flows v2 on transverse momentum PT for charged hadrons produced in nucleus-nucleus collisions at high energy by using a multi-source thermal model, where the contribution of source interactions is considered. Our calculated results are approximately in agreement with the experimental data over a wider PT range from the PHENIX and ALICE collaborations. It is found that the expansion factor increases linearly with the impact parameter from most central (0–5%) to mid-peripheral (35–40%) collisions.
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Received: 08 February 2012
Published: 29 July 2012
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| PACS: |
25.75.-q
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(Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions))
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24.10.Pa
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(Thermal and statistical models)
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25.75.Ld
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(Collective flow)
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[1] Aamodt K et al (The ALICE collaboration) 2010 Phys. Rev. Lett. 105 252302
[2] Adare A et al (PHENIX collaboration) 2010 Phys Rev Lett 105 062301
[3] Hirano T, Huovinen P and Nara Y 2010 arXiv:1012.3955 [nucl-th]
[4] Luzum M 2011 Phys. Rev. C 83 044911
[5] Bozek P 2011 arXiv:1101.1791 [nucl-th]
[6] Song H, Bass S A and Heinz U W 2011 arXiv:1103.2380 [nucl-th]
[7] Ollitrault J Y 1992 Phys. Rev. D 46 229
[8] Barrette J et al (E877 collaboration) 1994 Phys. Rev. Lett. 73 2532
[9] Barrette J et al (E877 collaboration) 1997 Phys. Rev. C 55 1420 [Erratum-ibid 1997 Phys. Rev. C 56 2336]
[10] Alt C et al (NA49 collaboration) 2003 Phys. Rev. C 68 034903
[11] Ackermann K H et al (STAR collaboration) 2001 Phys. Rev. Lett. 86 402
[12] Teaney D et al 2001 Phys. Rev. Lett. 86 4783; Hirano T, Heinz U W, Kharzeev D, Lacey R and Nara Y 2006 Phys. Lett. B 636 299
[13] Song H and Heinz U W 2008 Phys. Lett. B 658 279
[14] Liu F H et al 2007 Phys. Rev. C 75 054613
[15] Sun J X et al 2011 Phys. Rev. C 83 014001
[16] Li B C et al 2012 J. Phys. G 39 025009
[17] Sorge H 1997 Phys. Rev. Lett. 78 2309
[18] Drescher H J et al 2007 Phys. Rev. C 76 024905
[19] LI N and SHI S S 2011 Chin. Phys. Lett. 28 122502
[20] Huovinen P and Ruuskanen P V 2006 Ann. Rev. Nucl. Part. Sci. 56 163
[21] Song T et al 2010 arXiv:1008.2730 [hep-ph]
[22] Bhalerao R S et al 2005 Phys. Lett. B 627 49
[23] Roy V and Chaudhuri A K 2011 arXiv:1103.2870 [nucl-th]
[24] Niemi H, Denicol G S, Huovinen P, Molnar E and Rischke D H 2011 arXiv:1101.2442 [nucl-th]
[25] Li B C and Huang M 2009 J. Phys. G 36 064062
[26] Abelev B I et al (The STAR collaboration) 2010 Phys. Rev. C 81 044902
[27] Li B C and Huang M 2009 Phys. Rev. D 80 034023
Li B C and Wang L L 2009 Int. J. Mod. Phys. A 24 5725
[28] Schenke B, Jeon S and Gale C 2011 arXiv:1102.0575 [hep-ph]
[29] Miller M L, Reygers K, Sanders S J and Steinberg P 2007 Ann. Rev. Nucl. Part. Sci. 57 205 |
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