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Are antibaryons a signal for a phase transition in ultrarelativistic nucleus-nucleus collisions?
Phys. Rev. D 30, 2001(R) – Published 1 November, 1984
DOI: https://doi.org/10.1103/PhysRevD.30.2001
Abstract
In this paper, it is speculated that antibaryon production in relativistic nucleus-nucleus collisions is a signal for a phase transition from a high-temperature Debye-screened and chirally symmetric phase to a low-temperature confined and chirally broken phase. In a chiral model for the transition where baryons are topological excitations the production of baryons and antibaryons takes place by the Kibble mechanism. A qualitative discussion of possible experimental signatures is given.
References (14)
- Proceedings of the Fourth International Conference on Ultra Relativistic Nucleus-Nucleus Collisions, Helsinki, 1984, edited by J. Maalampi (Springer, Berlin, in press)
- R. Gavai, M. Lev, and B. Petersson, Phys. Lett. 140B, 397 (1984) J. Polonyi et al., Phys. Rev. Lett. 53, 644 (1984) F. Fucito, S. Solomon, and C. Rebbi, Caltech Reports Nos. CALT-68-1124 and CALT-68-1127, 1984 (unpublished)
- E. Witten, Phys. Rev. D 30, 272 (1984)
- R. Pisarski and F. Wilczek, Phys. Rev. D 29, 338 (1984)
- E. Witten, Nucl. Phys. B223, 422 (1983) ibid.B223, 433 (1983) T. H. R. Skyrme, Proc. Roy. Soc. London, Ser. A 260, 127 (1961) Nucl. Phys. 31, 556 (1962)
- T. W. B. Kibble, J. Phys. A 9, B87 (1976)
- M. Einhorn, D. Stein, and D. Toussaint, Phys. Rev. D 21, 3295 (1980)
- K. Kajantie, R. Raitio, and V. Ruuskanen, Nucl. Phys. B222, 152 (1983)
- L. Landau and E. Lifshitz, Statistical Physics (Pergamon, New York, 1980), p. 162
- A. Guth and H. Tye, Phys. Rev. Lett. 44, 631 (1980) A. Guth and E. Weinberg, Phys. Rev. D 23, 876 (1981)
- L. Landau, Izv. Akad. Nauk SSSR, Ser. Fiz. 17, 51 (1953) in his Collected Papers, edited by D. Ter Haar (Pergamon, New York, 1965) J. Bjorken, Phys. Rev. D 27, 140 (1983) and [8]
- M. Gyulassy, K. Kajantie, H. Kurki-Suonio, and L. McLerran, Nucl. Phys. B237, 447 (1984)
- D. Toussaint and F. Wilczek, J. Chem. Phys. 78, 2642 (1983)
- W. Thome et al., Nucl. Phys. B129, 117 (1977)