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Goldberger-Treiman relation, [ital g][sub [ital A]], and [ital g][sub [pi][ital N][ital N]] at [ital T][ne]0

Journal Article · · Physical Review, D (Particles Fields); (United States)
 [1];  [2]
  1. Institute for Theoretical Physics, University of California, Santa Barbara, California 93106 (United States) Institute for Theoretical Physics, Berne University, Sidlerstrasse 5, CH-3012 Berne (Switzerland)
  2. Physics Department, Jadwin Hall, Princeton University, Princeton, New Jersey 08540 (United States)
The Goldberger-Treiman relation is shown to persist in the chiral limit at finite temperatures to [ital O]([ital T][sup 2]). The [ital T] dependence of [ital g][sub [ital A]] turns out to be the same as for [ital F][sub [pi]], [ital g][sub [ital A]]([ital T])=[ital g][sub [ital A]](0)(1[minus][ital T][sup 2]/12[ital F][sub [pi]][sup 2]), while [ital g][sub [pi][ital N][ital N]] is temperature independent to this order. The baryon octet [ital scrD] and [ital scrF] couplings also behave as [ital F][sub [pi]] if only pions are massless in the pseudoscalar meson octet.
OSTI ID:
5019534
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:7; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English