Mass-derivative formula and the singularity structure in thermo field dynamics
Journal Article
·
· Phys. Rev. D; (United States)
We introduce a mass-derivative formula and show in the examples of the daisy diagrams and the effective potential in the manner of Coleman and E. Weinberg that there is no delta/sup N/(k/sup 2/-m/sup 2/)-type singularity in the perturbative calculations in thermo field dynamics. Other derivative formulas are also mentioned.
- Research Organization:
- Theoretical Physics Institute, The University of Alberta, Edmonton, Alberta, Canada T6G 2J1
- OSTI ID:
- 6349535
- Journal Information:
- Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 30:6; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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