Fast-phonon induced broadening of single-particle lines in excited nuclear matter

A modified kinetic equation for nuclear matter, whose generator of irreversible motion contains a contribution from coupling to a fast collective mode in addition to the usual kinetic kernel, is examined. The fermionic collision rates are evaluated in the relaxation-time approximation, assuming a fi...

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Autores principales: Dorso, Claudio Oscar, Hernández, Ester Susana
Publicado: 1984
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v29_n4_p1523_Dorso
http://hdl.handle.net/20.500.12110/paper_05562813_v29_n4_p1523_Dorso
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_05562813_v29_n4_p1523_Dorso
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spelling paper:paper_05562813_v29_n4_p1523_Dorso2023-06-08T15:41:29Z Fast-phonon induced broadening of single-particle lines in excited nuclear matter Dorso, Claudio Oscar Hernández, Ester Susana A modified kinetic equation for nuclear matter, whose generator of irreversible motion contains a contribution from coupling to a fast collective mode in addition to the usual kinetic kernel, is examined. The fermionic collision rates are evaluated in the relaxation-time approximation, assuming a finite amount of excitation is transferred from collective motion to the single-particle degrees of freedom in the form of a temperature increase. Both energy and angular dependence of the collision frequencies are discussed. [NUCLEAR STRUCTURE Modified kinetic equation; fermion-boson coupling; intrinsic kinetics; phonon-induced kinetics; total collision rate; resonance decay; finite temperature in nuclear matter; distortion of the Fermi sphere.] © 1984 The American Physical Society. Fil:Dorso, C.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Hernandez, E.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1984 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v29_n4_p1523_Dorso http://hdl.handle.net/20.500.12110/paper_05562813_v29_n4_p1523_Dorso
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A modified kinetic equation for nuclear matter, whose generator of irreversible motion contains a contribution from coupling to a fast collective mode in addition to the usual kinetic kernel, is examined. The fermionic collision rates are evaluated in the relaxation-time approximation, assuming a finite amount of excitation is transferred from collective motion to the single-particle degrees of freedom in the form of a temperature increase. Both energy and angular dependence of the collision frequencies are discussed. [NUCLEAR STRUCTURE Modified kinetic equation; fermion-boson coupling; intrinsic kinetics; phonon-induced kinetics; total collision rate; resonance decay; finite temperature in nuclear matter; distortion of the Fermi sphere.] © 1984 The American Physical Society.
author Dorso, Claudio Oscar
Hernández, Ester Susana
spellingShingle Dorso, Claudio Oscar
Hernández, Ester Susana
Fast-phonon induced broadening of single-particle lines in excited nuclear matter
author_facet Dorso, Claudio Oscar
Hernández, Ester Susana
author_sort Dorso, Claudio Oscar
title Fast-phonon induced broadening of single-particle lines in excited nuclear matter
title_short Fast-phonon induced broadening of single-particle lines in excited nuclear matter
title_full Fast-phonon induced broadening of single-particle lines in excited nuclear matter
title_fullStr Fast-phonon induced broadening of single-particle lines in excited nuclear matter
title_full_unstemmed Fast-phonon induced broadening of single-particle lines in excited nuclear matter
title_sort fast-phonon induced broadening of single-particle lines in excited nuclear matter
publishDate 1984
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562813_v29_n4_p1523_Dorso
http://hdl.handle.net/20.500.12110/paper_05562813_v29_n4_p1523_Dorso
work_keys_str_mv AT dorsoclaudiooscar fastphononinducedbroadeningofsingleparticlelinesinexcitednuclearmatter
AT hernandezestersusana fastphononinducedbroadeningofsingleparticlelinesinexcitednuclearmatter
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