Nucleons at finite temperature
- Department of Physics, State University of New York at Stony Brook, Stony Brook, New York 11794-3800 (United States)
The nucleon mass shift is calculated using chiral counting arguments and a virial expansion, without and with the {Delta}. At all temperatures, the mass shift and damping rate are dominated by the {Delta}. Our results are compared with the empirical analysis of Leutwyler and Smilga, as well as results from heavy baryon chiral perturbation theory in the large {ital N}{sub {ital c}} (number of color) limit. We show that unitarity implies that the concepts of thermal shifts are process dependent. {copyright} {ital 1996 The American Physical Society.}
- Research Organization:
- New York State University Research Foundation
- DOE Contract Number:
- FG02-88ER40388
- OSTI ID:
- 392065
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 54; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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