Knoll, P. Senger, H. Str¨ obele, V.D. Toneev and D.N. Voskresensky are gratefully acknowledged. I am grateful to A.S.Khvorostukhin, V.V.Skokov, and V.D.Toneev for providing me with the tabulated 2-ph. EoS. I am grate- ful to members of the NA49 Collaboration for providing me with the experimental data in the digital form. This work was supported in part by the Deutsche Bundesmin- 

[1] L. Ahle et al. (E802 Collab.), Phys. Rev. C 60 , 064901 (1999). 

[2] J. Barrette et al. (E877 Collab.), Phys. Rev. C 62 , 024901 (2000). 

[3] B.B. Back et al., (E917 Collab.), Phys. Rev. Lett. 86 , 1970 (2001). 

[4] J. Stachel, Nucl. Phys. A654 , 119c (1999). 

[5] H. Appelsh¨ auser et al. (NA49 Collab.), Phys. Rev. Lett. 82 , 2471 (1999). 

[6] T. Anticic et al. (NA49 Collab.), Phys. Rev. C 69 , 024902 (2004). 

[7] C. Alt et al. (NA49 Collab.), Phys. Rev. C 73 , 044910 (2006). 

[8] C. Blume (NA49 Collab.), J. Phys. G34 , S951 (2007). 

[9] H. Strobele (NA49 Collab.), e-Print: arXiv:0908.2777 [nucl-ex]. 

[10] W. Cassing and E.L. Bratkovskaya, e-Print: arXiv:0907.5331 [nucl-th]. 

[11] J. Steinheimer et al. , e-Print: arXiv:0905.3099 [hep-ph] 

[12] E.L. Bratkovskaya, M. Bleicher, M. Reiter, S. Soff, H. Stoecker, M. van Leeuwen, S.A. Bass, and W. Cassing, Phys. Rev. C 69 , 054907 (2004). 

[13] H. Weber, E.L. Bratkovskaya, W. Cassing, and H. St¨ ocker, Phys. Rev. C 67 , 014904 (2003). 

[14] H. Weber, E.L. Bratkovskaya, and H. Stoecker, Phys. Rev. C 66 , 054903 (2002). 

[15] A.B. Larionov, O. Buss, K. Gallmeister, and U. Mosel, Phys. Rev. C 76 , 044909 (2007). 

[16] M. Wagner, A.B. Larionov, and U. Mosel, Phys. Rev. C 71 , 034910 (2005). 

[17] Yu.B. Ivanov, V.N. Russkikh, and V.D. Toneev, Phys. Rev. C 73 , 044904 (2006). 

isterium f¨ ur Bildung und Forschung (BMBF project RUS 08/038), the Deutsche Forschungsgemeinschaft (DFG projects 436 RUS 113/558/0-3 and WA 431/8-1), the Russian Foundation for Basic Research (RFBR grant 09- 02-91331 NNIO a), and the Russian Ministry of Science and Education (grant NS-7235.2010.2). 

[18] Yu.B. Ivanov and V.N. Russkikh, PoS(CPOD07)008 (2007), arXiv:0710.3708 [nucl-th]. 

[19] V.M. Galitsky and I.N. Mishustin, Sov. J. Nucl. Phys. 29 , 181 (1979). 

[20] A.S.Khvorostukhin, V.V.Skokov, K.Redlich, and V.D.Toneev, Eur. Phys. J. C48 , 531 (2006). 

[21] C. Alt et al. [NA49 Collab.], Phys. Rev. C 77 , 024903 (2008). 

[22] C. Alt et al. (NA49 Collab.), Phys. Rev. C 68 , 034903 (2003). 

[23] V.N. Russkikh and Yu.B. Ivanov, Phys. Rev. C 74 (2006) 034904. 

[24] Yu.B. Ivanov and V.N. Russkikh, Eur. Phys. J. A 37 , 139 (2008); Phys. Rev. C 78 , 064902 (2008). 

[25] Yu.B. Ivanov, I.N. Mishustin, V.N. Russkikh, and L.M. Satarov, Phys. Rev. C 80 , 064904 (2009). 

[26] B.I. Abelev et al. [STAR Collab.], Phys. Rev. C 79 , 034909 (2009). 

[27] Bin Zhang, Lie-Wen Chen, and Che Ming Ko, J. Phys. G 35 , 065103 (2008). 

[28] Zhe Xu and C. Greiner, Phys. Rev. C 76 , 024911 (2007). 

[29] Y. Mehtar-Tani and G. Wolschin, Phys. Rev. Lett. 102 , 182301 (2009); Phys. Rev. C 80 , 054905 (2009). 

[30] I.C. Arsene, et al. , Phys. Rev. C 75 , 034902 (2007). 

[31] M. Gazdzicki and M. I. Gorenstein, Acta Phys. Polon. B 30 , 2705 (1999). 

[32] L.M. Satarov, M.N. Dmitriev, and I.N. Mishustin, Yad. Fiz. 72 , 1444 (2009) [Phys. Atom. Nucl. 72 , 1390 (2009)]. 

[33] J. Randrup, Phys. Rev. C 79 , 054911 (2009). 

[34] V.V. Skokov and D.N. Voskresensky, JETP Lett. 90 , 223 (2009); Nucl. Phys. A828 , 401 (2009). 

