Soliton-antisoliton pair creation in strong external fields

Yumi Hirata; Hisakazu Minakata

doi:10.1103/PhysRevD.36.652

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Soliton-antisoliton pair creation in strong external fields

Yumi Hirata

Hisakazu Minakata

Institute of Physics, College of Liberal Arts and Science, Kitasato University, Sagamihara, Kanagawa 228, Japan

Department of Physics, Tokyo Metropolitan University, Setagaya, Tokyo 158, Japan

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Phys. Rev. D 36, 652(R) – Published 15 July, 1987

DOI: https://doi.org/10.1103/PhysRevD.36.652

Abstract

The features of soliton-antisoliton (fermion-antifermion) pair creation due to instantaneous uniform external electric fields are investigated in the sine-Gordon (massive Thirring) theory. Under the coherent-state approximation of soliton states improved via the generator-coordinate method, it is found that the momentum spectra of solitons and antisolitons have a peak structure, some of whose qualitative properties are quite reminiscent of the ones of the electron and positron peaks found in recent heavy-ion collision experiments at Gesellschaft für Schwerionenforschung Darmstadt.

References (8)

Y. Hirata and H. Minakata, Phys. Rev. D 34, 2493 (1986).
T. Cowan et al., Phys. Rev. Lett. 54, 1761 (1985); H. Tsertos et al., Phys. Lett. 162B, 273 (1985).
T. Cowan et al., Phys. Rev. Lett. 56, 444 (1986).
S. Coleman, Phys. Rev. D 11, 2088 (1975).
C. Itzykson and J.-B. Zuber, Quantum Field Theory (McGraw-Hill, New York, 1980).
K. Cahill, Phys. Lett. 53B, 174 (1974).
W. Greiner, B. Muller, and J. Rafelski, Quantum Electrodynamics of Strong Fields (Springer, Berlin, 1985).
R. F. Dashen, B. Hasslacher and A. Neveu, Phys. Rev. D 11, 3424 (1975).

[c1] Y. Hirata and H. Minakata, Phys. Rev. D 34, 2493 (1986).

[c2] T. Cowan et al., Phys. Rev. Lett. 54, 1761 (1985); H. Tsertos et al., Phys. Lett. 162B, 273 (1985).

[c3] T. Cowan et al., Phys. Rev. Lett. 56, 444 (1986).

[c4] S. Coleman, Phys. Rev. D 11, 2088 (1975).

[c5] C. Itzykson and J.-B. Zuber, Quantum Field Theory (McGraw-Hill, New York, 1980).

[c6] K. Cahill, Phys. Lett. 53B, 174 (1974).

[c7] W. Greiner, B. Muller, and J. Rafelski, Quantum Electrodynamics of Strong Fields (Springer, Berlin, 1985).

[c8] R. F. Dashen, B. Hasslacher and A. Neveu, Phys. Rev. D 11, 3424 (1975).

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Soliton-antisoliton pair creation in strong external fields

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References (8)

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