Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published January 26, 2012 | Published
Journal Article Open

Charged-particle decay at finite temperature


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


Files (266.6 kB)
Name Size Download all
266.6 kB Preview Download

Additional details

August 19, 2023
October 24, 2023