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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 2470-0010. doi:10.1103/PhysRevD.85.025018.

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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
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Kamionkowski, Marc0000-0001-7018-2055
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, Moore Center for Theoretical Cosmology and Physics
Funding AgencyGrant Number
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Department of Energy (DOE)DE-FG03-92-ER40701
Gordon and Betty Moore FoundationUNSPECIFIED
Johns Hopkins UniversityUNSPECIFIED
Issue or Number:2
Classification Code:PACS: 12.20.-m, 14.60.Ef, 95.30.Cq, 98.80.Cq
Record Number:CaltechAUTHORS:20120306-065630130
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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
Deposited By: Ruth Sustaita
Deposited On:13 Mar 2012 16:51
Last Modified:09 Nov 2021 17:08

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