[1] Ollitrault J Y 1992 Phys. Rev. D 46 229

[2] Adcox K et al (PHENIX Collaboration) 2002 Phys. Rev.
Lett. 89 212301

[3] Adler C et al (STAR Collaboration) 2002 Phys. Rev.
Lett. 89 132301

[4] Long J L, He Z J, Ma G L, Ma Y G, Liu Bo 2004 Chin.
Phys. Lett. 21 47

[5]Feng Q C, Zhang J B, Huo L and Zhang W N 2007 High
Energy Phys. Nucl. Phys. 30 736

Feng Q C, Zhang J B, Huo L and Zhang W N 2007 High
Energy Phys. Nucl. Phys. 30 633

[6] Huovinen P, Kolb P F, Heinz U, Ruuskanen P V, Voloshin S
A 2001 Phys. Lett. B 503 58

[7] Teaney D, Lauret J, Shuryak E V 2001 Phys. Rev.
Lett. 86 4783

[8] Kolb P F et al 2001 Nucl. Phys. A 696 197

[9] Xu X M 2005 Chin. Phys. Lett. 22 1631

[10] Heinz U W and Kolb P F 2002 Nucl. Phys. A 702
269

[11] Molnar D and Gyulassy M 2002 Nucl. Phys. A
697 495

[12] Teaney D 2004 Nucl. Phys. A 715 817c

[13] Issah M and Taranenko A 2006 {Arxiv:nucl-ex 0604011

[14] Bhalerao R S, Blaizot J P and Borghini N 2005 Phys.
Lett. B 627 49

[15] Kolb P F, Sollfrank J and Heinz U 2000 Phys. Rev. C
62 054909

[16] Shuryak E V 2004 Prog. Part. Nucl. Phys. 53
273

[17] Kolb P F and Rapp R 2000 Phys. Rev. C 67
044903

[18] Kolb P F and Heinz U 2000 nucl-th 0305084

[19] Sollfrank J, Koch P and Heinz U 1990 Phys. Lett. B
252 256

[20] Sollfrank J, Koch P and Heinz U 1991 Z. Phys. C
52 593

[21] Sollfrank J, Huovinen P, Kataja M et al 1997 Phys.
Rev. C 55 392

[22] Dong X, Esumi S and Sorensen P 2004 Phys. Lett. B
597 328

[23] Kolb P F, Sollfrank J and Heinz U W 1999 Phys.
Lett. B 459 667

[24] Kolb P F and Heinz U 2003 Nucl. Phys. A 715
653c

[25] Ollitrault J Y 2008 Eur. J. Phys. 29 275

[26] Drescher H J and Dumitru A 2007 Phys. Rev. C
76 024905