μ decay at T≠0 and infrared singularities

Details μ decay at T≠0 and infrared singularities μ decay at T≠0 and infrared singularities

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvd..41.1667j&link_type=abstract

Physical Review D (Particles and Fields), Volume 41, Issue 5, 1 March 1990, pp.1667-1671

Physics

1

Muons, Specific Calculations, Elementary Particle Processes

Scientific paper

The thermal corrections to the decay rate of the muon are calculated to lowest order in α and lowest nonvanishing order in the temperature T. An analytical expression is derived for ΔΓ, the correction to the decay rate, under the assumption that T<0, and, indeed, there are correction terms of the form ln(m/M), where M is the mass of the muon, which do not cancel. In order to consider the m-->0 limit, the proper scheme is m<

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