Rates of neutrino conversion and decay in hot and dense QED plasma
نویسندگان
چکیده
منابع مشابه
Rates of neutrino conversion and decay in hot QED plasma
Using a real-time formalism of thermal field theory, we derive the reaction-rate formula for neutrino-conversion (ν → ν ) process and νν̄ ′ annihilation process, which take place in an ultrarelativistic QED plasma consisting of electrons, positrons, and photons. Also derived is the formula for the inverse processes to the above ones. On the basis of the hard-thermal-loop resummation scheme, we i...
متن کاملRates of neutrino conversion and decay in hot and dense QED plasma
Using a real-time formalism of equilibrium and nonequilibrium quantum-field theory, we derive the reaction-rate formula for neutrino-conversion (ν → ν ) process and νν̄ ′ annihilation process, which take place in a hot and dense QED plasma with background (anti)neutrinos out of equilibrium. Also derived is the formula for the inverse processes to the above ones. Using the hard-thermal-loop resum...
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We study the charged and neutral current weak interaction rates relevant for the determination of neutrino opacities in dense matter found in supernovae and neutron stars. We establish an e cient formalism for calculating di erential cross sections and mean free paths for interacting, asymmetric nuclear matter at arbitrary degeneracy. The formalism is valid for both charged and neutral current ...
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چکیده ندارد.
15 صفحه اولRadiative neutrino decay in hot media
We calculate the rate for the radiative neutrino decay in a thermal background of electrons and photons, taking into account the effect of the stimulated emission of photons in the thermal bath. We show that the rate is enhanced by a large factor relative to the rate for the corresponding process in the vacuum. The notion that the presence of an ambient medium modifies the properties of element...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2002
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.65.056007