Published January 26, 2012
| Published
Journal Article
Open
Charged-particle decay at finite temperature
Abstract
Radiative corrections to the decay rate of charged fermions caused by the presence of a thermal bath of photons are calculated in the limit when temperatures are below the masses of all charged particles involved. The cancellation of finite-temperature infrared divergences in the decay rate is described in detail. Temperature-dependent radiative corrections to a two-body decay of a hypothetical charged fermion and to electroweak decays of a muon μ→eν_μν̅_e are given. We touch upon possible implications of these results for charged particles in the early Universe.
Additional Information
© 2012 American Physical Society. Received 17 October 2011; published 26 January 2012. This research was supported at Alberta by Science and Engineering Research Canada (NSERC), at JHU by the NSF Grant No. PHY-0855365 and JHU startup funds, and at Caltech by DOE DE-FG03-92-ER40701, NASA NNX10AD04G, and the Gordon and Betty Moore Foundation.Attached Files
Published - Czarnecki2012p17335Phys_Rev_D.pdf
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Czarnecki2012p17335Phys_Rev_D.pdf
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Additional details
- Eprint ID
- 29580
- Resolver ID
- CaltechAUTHORS:20120306-065630130
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- PHY-0855365
- NSF
- DE-FG03-92-ER40701
- Department of Energy (DOE)
- NNX10AD04G
- NASA
- Gordon and Betty Moore Foundation
- Johns Hopkins University
- Created
-
2012-03-13Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Caltech groups
- TAPIR, Moore Center for Theoretical Cosmology and Physics