Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at <SUP>s</SUP>NN=200 GeV in AMPT model

WANG Mei-Juan; CHEN Gang; WU Yuan-Fang

doi:10.1088/1674-1137/37/1/014104

Chinese Physics C> 2013, Vol. 37> Issue(1) : 014104 DOI: 10.1088/1674-1137/37/1/014104

Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at ^sNN=200 GeV in AMPT model

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In this paper, elliptic flow is studied at fixed centrality in Au+Au collision at √s_NN=200 GeV in the AMPT model. It is observed that with the participant increasing, elliptic flow has an increase or a decrease at different fixed impact parameter, but it does not have a trivial fluctuation. It is analyzed that the initial space anisotropy dominates the participant dependence of elliptic flow in near-central collisions(b=5 fm) and mid-central collisions(b=8 fm), while the interaction between particles can mainly answer for the behavior of elliptic flow with participant in peripheral collisions (b=12 fm). To distinguish the pure geometrical effect, elliptic flow scaled by initial eccentricity is studied. It is found that the ratio v₂/ε increases with participant and reaches a saturation when the participant is large enough, indicating that the collision system may reach the local equilibrium.

References

[1]

Marcus Bleicher, Horst Stcker. Phys. Lett. B, 2002, 526: 309-314[2] Adcox K et al. (PHENIX collaboration). Nucl. Phys. A, 2005, 757: 184-283[3] John Adams et al. (STAR collaboration). Nucl. Phys. A, 2005, 757: 102-183[4] Ollitrault J Y. Phys. Rev. D, 1992, 46: 229[5] Heinz U, Kolb P. Nucl. Phys. A, 2002, 702: 269[6] Shuryak E. Prog. Part. Nucl. Phys., 2009, 62: 48[7] Brachmann J, Soff S, Dumitru A, Stcker H, Maruhn J A, Greiner W, Rischke D H. Phys. Rev. C, 2000, 61: 024909[8] CHEN J H et al. Phys. Rev. C, 2006, 74: 064902; YAN T Z et al. Phys. Lett. B, 2006, 638: 50[9] Kolb P F, Huovinen P, Heinz U, Heiselberg H. Phys. Lett. B, 2001, 500: 232[10] ZHANG B, Gyulassy M, KO Che-Ming. Phys. Lett. B, 1999, 455: 45[11] LIN Zi-Wei, KO Che-Ming, LI Bao-An, ZHANG Bin, Subrata Pal. Phys. Rev. C, 2005, 72: 064901[12] LIN Zi-Wei, KO C M. Phys. Rev. C, 2002, 65: 034904[13] LIN Zi-Wei, KO C M, Subrata Pal. Phys. Rev. Lett., 2002, 89: 152301[14] WANG X N. Phys. Rev. D, 1991, 43: 104; Gyulassy M, WANG X N. Comput. Phys. Commun., 1994, 83, 307[15] ZHANG B. Comput. Phys. Commun., 1998, 109: 193[16] LI B A, KO C M. Phys. Rev. C, 1995, 52: 2037[17] Michael L Miller, Klaus Reygers, Stephen J Sanders, Peter Steinberg. Ann. Rev. Nucl. Part. Sci., 2007, 57: 205-243[18] Alver B et al. (PHOBOS collaboration). Phys. Rev. Lett., 2007, 98: 242302[19] Ollireault J Y. Phys. Rev. D, 1992, 46: 229[20] Sorge H. Phys. Rev. Lett., 1999, 82: 2048[21] Hans-Joachim Drescher, Adrian Dumitru, Clement Gombeaud, Jeans-Yves Ollitrault. Phys. Rev. C, 2005, 76: 024905[22] Abelev B L et al. (STAR collaboration). Phys. Rev. C, 2008, 77: 054901

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[14]	FENG Qi-Chun , ZHANG Jing-Bo , HUO Lei , ZHANG Wei-Ning . The Radius Dependence of Elliptic Flow in Au+Au Non-Central Collisions at RHIC Energy. Chinese Physics C, 2006, 30(7): 633-637.
[15]	LIU Qing-Jun , GUO Li-Qun , PIAO Xing-Liang . Partonic interactions and two particle transverse momentum correlations in Au + Au collisions at √sNN=130GeV. Chinese Physics C, 2006, 30(6): 485-487.
[16]	LIU Xi-Ming . Anti-particles-to-Particles Ratios in Au+Au Collisions at √S_NN=130GeV. Chinese Physics C, 2006, 30(5): 435-440.
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[18]	ZHANG Jing-Bo , HUO Lei , ZHANG Wei-Ning , LIU Yi-Ming . Radial Flow in Au+Au Central Collisions at RHIC Energy. Chinese Physics C, 2002, 26(4): 305-308.
[19]	ZHANG Jing-Bo , HUO Lei , ZHANG Wei-Ning , LIU Yi-Ming . HBT Parameters for Au+Au Collisions at RHIC Energy. Chinese Physics C, 2001, 25(12): 1253-1257.
[20]	Xi Hongfei , Shen Wenqing , Zhu Yongtai , Jin Genming , Wei Zhiyong . Development of Central Collective Flow in 100 MeY/u Au+Au Central Collisions. Chinese Physics C, 1997, 21(S3): 63-70.

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WANG Mei-Juan, CHEN Gang and WU Yuan-Fang. Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at ^sNN=200 GeV in AMPT model[J]. Chinese Physics C, 2013, 37(1): 014104. doi: 10.1088/1674-1137/37/1/014104

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Received: 2012-05-18
Revised: 1900-01-01

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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

Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at ^sNN=200 GeV in AMPT model

Corresponding author: WANG Mei-Juan,

Received Date: 2012-05-18

Accepted Date: 1900-01-01

Available Online: 2013-01-05

Abstract: In this paper, elliptic flow is studied at fixed centrality in Au+Au collision at √s_NN=200 GeV in the AMPT model. It is observed that with the participant increasing, elliptic flow has an increase or a decrease at different fixed impact parameter, but it does not have a trivial fluctuation. It is analyzed that the initial space anisotropy dominates the participant dependence of elliptic flow in near-central collisions(b=5 fm) and mid-central collisions(b=8 fm), while the interaction between particles can mainly answer for the behavior of elliptic flow with participant in peripheral collisions (b=12 fm). To distinguish the pure geometrical effect, elliptic flow scaled by initial eccentricity is studied. It is found that the ratio v₂/ε increases with participant and reaches a saturation when the participant is large enough, indicating that the collision system may reach the local equilibrium.

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Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at ^sNN=200 GeV in AMPT model

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Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at ^sNN=200 GeV in AMPT model

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Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at sNN=200 GeV in AMPT model

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通讯作者: 陈斌, bchen63@163.com

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Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at sNN=200 GeV in AMPT model

Corresponding author: WANG Mei-Juan,

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Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at ^sNN=200 GeV in AMPT model

Eccentricity and elliptic flow at fixed centrality in Au+Au collisions at ^sNN=200 GeV in AMPT model