Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-11-24
Phys.Rev. D53 (1996) 4650-4667
Physics
High Energy Physics
High Energy Physics - Phenomenology
28 pages and 1 postscript figure, REVTeX
Scientific paper
10.1103/PhysRevD.53.4650
The fermion four-point functions and condensates as the chiral symmetry order parameters are calculated analytically in U(1) gauge theory in the massless phase. It is shown that in leading order of the loop expansion of the effective action, there is a critical coupling for the nonperturbative parity-invariant chirality-changing four-fermion functions; this critical coupling however is the same as that for dynamical mass generation. Therefore there is no breaking of chiral symmetry through the condensation of four-fermion functions below the critical coupling for dynamical mass generation for the fermions.
Maris Pieter
Wang Qing
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