Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-01-29
Phys.Lett. B455 (1999) 217-223
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, revtex. Typos are corrected, references updated and new ones included, and added the calculation of the critical leng
Scientific paper
10.1016/S0370-2693(99)00470-0
The catalysis of chiral symmetry breaking by an applied constant magnetic field and in the presence of boundaries along third axis is investigated in the four-dimensional Nambu-Jona-Lasinio model. It is shown that in case of periodic boundary conditions for fermions the magnetic field breaks the chiral symmetry, generating a dynamical mass even at the weakest attractive interaction between fermions. For antiperiodic boundary conditions the effect of the finite third dimension is to counteract the chiral symmetry breaking.
Ferrer Efrain J.
Gusynin Valery P.
la Incera Vivian de
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