摘要The elliptic flow of a hadron is calculated using a quark coalescence model based on the quark phase space distribution produced by a free streaming locally thermalized quark in a two-dimensional transverse plane at initial time. Without assuming the quark's elliptic flow, it is shown that the hadron obtains a non-zero elliptic flow in this model. The elliptic flow of the hadron is shown to be sensitive to both space momentum correlation and the hadron's internal structure. Quark number scaling is obtained only for some special cases.
Abstract：The elliptic flow of a hadron is calculated using a quark coalescence model based on the quark phase space distribution produced by a free streaming locally thermalized quark in a two-dimensional transverse plane at initial time. Without assuming the quark's elliptic flow, it is shown that the hadron obtains a non-zero elliptic flow in this model. The elliptic flow of the hadron is shown to be sensitive to both space momentum correlation and the hadron's internal structure. Quark number scaling is obtained only for some special cases.
(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))
引用本文:
LIU Jian-Li;SHAN Lian-Qiang;FENG Qi-Chun;WU Feng-Juan;ZHANG Jing-Bo;TANG Gui-Xin;HUO Lei. A Non-Zero Hadronic Elliptic Flow with a Vanished Partonic Elliptic Flow in a Coalescence Scenario[J]. 中国物理快报, 2009, 26(7): 72501-072501.
LIU Jian-Li, SHAN Lian-Qiang, FENG Qi-Chun, WU Feng-Juan, ZHANG Jing-Bo, TANG Gui-Xin, HUO Lei. A Non-Zero Hadronic Elliptic Flow with a Vanished Partonic Elliptic Flow in a Coalescence Scenario. Chin. Phys. Lett., 2009, 26(7): 72501-072501.
[1] Voloshin S A and Zhang Y 1996 Z. Phys. C 70665 [2] Poskanzer A M et al 1998 Phys. Rev. C 58 1671 [3] Adams J et al 2004 Phys. Rev. Lett. 92 052302 [4] Voloshin S A 2003 Nucl. Phys. A 715 379 [5] Molnar D et al 2003 Phys. Rev. Lett. 91 092301 [6] Greco V and Ko C M 2003 Phys. Rev. C 68 034904 [7] Lin Z W et al 2005 Phys. Rev. C 72 064901 [8] Zhang B et al 2005 Phys. Rev. C 72 024906 [9] Chen L W and Ko C M 2006 Phys. Rev. C 73044903 [10] Hwa R C and Yang C B 2008 arXiv:0801.2183 [11] Abelev B I et al 2007 Phys. Rev. C 75 054906 [12] Adare A 2007 Phys. Rev. Lett. 98 162301 [13] Molnar D 2004 J. Phys. G: Nucl. Part. Phys. 30 S1239 [14] Molnar D 2005 J. Phys. G: Nucl. Part. Phys. 31 S421 [15] Pratt S and Pal S 2005 Phys. Rev. C 71 014905 [16] Scheibl R and Heinz U 1999 Phys. Rev. C 591585 [17] Gyulassy M et al 2007 Braz. J. Phys. C 371031 [18] Heiselberg H and Levy A M 1999 Phys. Rev. C 59 2716 [19] Kolb P F et al 2000 Phys. Rev. C 62 054909 [20] Adams J et al 2005 Nucl. Phys. A 757 102
2009, Vol. 26 
