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Charged-particle decay at finite temperature

Czarnecki, Andrzej and Kamionkowski, Marc and Lee, Samuel K. and Melnikov, Kirill (2012) Charged-particle decay at finite temperature. Physical Review D, 85 (2). Art. No. 025018 . ISSN 0556-2821. http://resolver.caltech.edu/CaltechAUTHORS:20120306-065630130

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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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevD.85.025018DOIUNSPECIFIED
http://link.aps.org/doi/10.1103/PhysRevD.85.025018PublisherUNSPECIFIED
http://prd.aps.org/abstract/PRD/v85/i2/e025018PublisherUNSPECIFIED
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.
Group:TAPIR
Funders:
Funding AgencyGrant Number
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
NSFPHY-0855365
Department of Energy (DOE)DE-FG03-92-ER40701
NASANNX10AD04G
Gordon and Betty Moore FoundationUNSPECIFIED
Classification Code:PACS: 12.20.-m, 14.60.Ef, 95.30.Cq, 98.80.Cq
Record Number:CaltechAUTHORS:20120306-065630130
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120306-065630130
Official Citation:Charged-particle decay at finite temperature Andrzej Czarnecki, Marc Kamionkowski, Samuel K. Lee, and Kirill Melnikov Published 26 January 2012 (9 pages) 025018
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:29580
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:13 Mar 2012 16:51
Last Modified:26 Dec 2012 14:54

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