Abstract
In-medium effects of transverse-mass distributions of quarks and gluons are considered assuming a possible local equilibrium for colorless quark objects like mesons and baryons created in central AA collisions. It is shown that the average square of the transverse momentum for these partons grows and then saturates when the initial energy increases. Within the quark-gluon string model, it leads to an energy dependence of hadron transverse-mass spectra which is similar to that observed in heavy-ion collisions. A comparison with other scenarios is given.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Proceedings of the International Conference “Quark Matter 2005,” Ed. by T. Csörgö, D. Gabor, P. Lévai, and G. Papp, Nucl. Phys. A 774 (2006); Proceedings of the International Conference “Quark Matter 2006,” Ed. by Y. G. Ma, E. K. Wang, X. Cai, et al., J. Phys. G 34 (2007).
E. V. Shuryak, Phys. Rep. 61, 71 (1980).
E. V. Shuryak and O. V. Zhirov, Phys. Lett. B 89, 253 (1980); O. Zhirov and E. V. Shuryak, Sov. J. Nucl. Phys. 28, 247 (1978).
L. van Hove, Phys. Lett. B 118, 138 (1982).
L. Ahle et. al. (E866 and E917 Collabs.), Phys. Lett. B 476, 1 (2000); 490, 53 (2000).
S. V. Afanasiev et al. (NA49 Collab.), Phys. Rev. C 66, 054902 (2002); C. Alt et al., J. Phys. G 30, S119 (2004); M. Gazdzicki et al., J. Phys. G 30, S701 (2004).
C. Adler et al. (STAR Collab.), nucl-ex/0206008; O. Barannikova et al., Nucl. Phys. A 715, 458 (2003); K. Filimonov et al., hep-ex/0306056; D. Ouerdane et al, (BRAHMS Collab.), Nucl. Phys. A 715, 478 (2003); J. H. Lee et al., J. Phys. G 30, S85 (2004); S. S. Adler et al. (PHENIX Collab.), nuclex/0307010, nucl-ex/0307022.
M. Gorenstein, M. Gazdzicki, and K. Bugaev, Phys. Lett. B 567, 175 (2003).
B. Mohanty et al., Phys. Rev. C 68, 021901 (2003).
E. L. Bratkovskaya, S. Soff, H. Stoecker, et al., Phys. Rev. Lett. 92, 032302 (2004).
M. Bleicher, E. Bratkovskaya, S. Vogel, and X. Zhu, J. Phys. G 31, S709 (2005).
M. Gazdzicki et al., Braz. J. Phys. 34, 322 (2004).
Yu. B. Ivanov and V. N. Russkikh, nucl-th/0607070.
Yu. B. Ivanov, V. N. Russkikh, and V. D. Toneev, Phys. Rev. C 73, 044904 (2006).
A. B. Laryonov, O. Buss, K. Gallmeister, and U. Mosel, Phys. Rev. C 76, 044909 (2007).
J. Kuti and V. F. Weiskopf, Phys. Rev. D 4, 3418 (1971).
A. Capella and V. J. Tran Than Van, Z. Phys. C 10, 249 (1981)
O. Benhar, S. Fantoni, G. I. Lykasov, and N. V. Slavin, Phys. Rev. C 55, 244 (1997).
A. B. Kaidalov and K. A. Ter-Martirosyan, Phys. Lett. B 117, 247 (1982).
A. B. Kaidalov and O. I. Piskunova, Z. Phys. C 30, 145 (1986).
G.’t Hooft, Nucl. Phys., B 72, 461 (1974).
G. Veneziano, Phys. Lett. B 52, 220 (1974).
A. Capella, U. Sukhatme, C. L. Tan, and J. Tran Thanh Van, Phys. Rep. 236, 225 (1994).
K. Werner, Phys. Rep. 232, 87 (1993).
K. A. Ter-Martirosyan, Phys. Lett. B 44, 377 (1973).
G. I. Lykasov and M. N. Sergeenko, Z. Phys. C 70, 455 (1996).
E. L. Bratkovskaya, M. Bleicher, M. Reiter, et al., Phys. Rev. C 69, 054907 (2004).
T. S. Biro, H. B. Nielsen, and J. Knoll, Nucl.Phys. B 245, 449 (1984).
Proposal for an International Accelerator Facility for Research with Heavy Ions and Antiprotons, http://www.gsi.de/documents/DOC-2004-Mar-196-2.pdf.
A. N. Sissakian, A. S. Sorin, and V.D. Toneev, nuclth/0608032.
Author information
Authors and Affiliations
Corresponding author
Additional information
The text was submitted by the authors in English.
Rights and permissions
About this article
Cite this article
Lykasov, G.I., Sissakian, A.N., Sorin, A.S. et al. Transverse-momentum spectra of hadrons produced in central heavy-ion collisions. Phys. Atom. Nuclei 71, 1600–1608 (2008). https://doi.org/10.1134/S1063778808090160
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063778808090160