[1] Adams J et al (STAR collaboration) 2005 Phys. Rev.
Lett. 95 152301

[2] Adams J. et al (STAR collaboration) 2006 Phys. Rev.
C 73 064907

[3] Putschke J (STAR collaboration) 2007 J. Phys. G
34 S679

[4] Wang F (STAR collaboration) 2007 [arXiv:0707.0815]

[5] Bielcikova J (STAR collaboration) 2007 J. Phys. G
74 S929

Molnar L (STAR collaboration) 2007 J. Phys. G {\pmb
74 S592

Abelev B (STAR collaboration) 2007 [arXiv:0705.3371]

[6] Hwa R C and Yang B C 2003 Phys. Rev. C 67
034902

Hwa R C and Tan Z G 2005 Phys. Rev. C 72 057902

Chiu C B and Hwa R C 2005 Phys. Rev. C 72 034903

[7] Hwa R C 2007 [arXiv:0708.1508]

[8] Romatschke P 2007 Phys. Rev. C 75 014901

[9] Voloshin S A 2005 Nucl. Phys. A 749 287

[10] Armesto A et al 2004 Phys. Rev. Lett. 93
242301

[11] Wong C Y 2007 Phys. Rev. C 76 054908

[12] Wong C Y 2008 J. Phys. G 35 104085
[arXiv:0804.4017]

[13] Wong C Y 2008 [arXiv:0806.2154]

[14] Shuryak E 2007 Phys. Rec. C 76 047901

[15] Pantuev V S 2007 [arXiv:0710.1882]

[16] Dumitru A et al 2007 [arXiv:0710.1223]

[17] Gavin S, and Moschelli G 2008 J. Phys. G 35
104084

[18] Dumitru A et al [arXiv:0804.3858]

[19] Wong C Y 1994 Introduction to High-Energy Heavy-Ion
Collisions (Singapore: World Scientific)

[20] Mostafa M and Wong C Y 1995 Phys. Rev. C {\pmb
51 2135

[21] Casher A et al 1974 Phys. Rev. D 10 732

[22] Wong C Y et al 1991 Phys. Rev. D 44 257

[23] Wenger E (PHOBOS collaboration) 2008 J. Phys. G
35 104080 [arXiv:0804.3038]