Symmetry violations in nuclear Hamiltonians and their consequences for electroweak decays

We discuss the results of the treatment of nuclear Hamiltonians in terms of collective and intrinsic variables. The BRST method is adapted to identify spurious and physical sectors of the wave functions and operators. Counterterms are added to the Hamiltonian to enforce the symmetries broken by the...

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Detalles Bibliográficos
Autores principales: Bes, D. R., Civitarese, Enrique Osvaldo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2003
Materias:
Física
Wave function
Elementary particle
Conversion process
Vector operator
Intrinsic variable
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/132524
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-132524
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Wave function
Elementary particle
Conversion process
Vector operator
Intrinsic variable
spellingShingle Física
Wave function
Elementary particle
Conversion process
Vector operator
Intrinsic variable
Bes, D. R.
Civitarese, Enrique Osvaldo
Symmetry violations in nuclear Hamiltonians and their consequences for electroweak decays
topic_facet Física
Wave function
Elementary particle
Conversion process
Vector operator
Intrinsic variable
description We discuss the results of the treatment of nuclear Hamiltonians in terms of collective and intrinsic variables. The BRST method is adapted to identify spurious and physical sectors of the wave functions and operators. Counterterms are added to the Hamiltonian to enforce the symmetries broken by the single-particle field and/or by the residual two-body interactions. We focus on the study of Fermi and Gamow-Teller transitions, with reference to the nuclear double-beta-decay processes, and on the study of vector operators (λπ = 1−) with reference to (μ, e−) conversion processes. We address the following aspects of the problem: (a) Isospin symmetry and the calculation of 0+ and 1+ states; sensitivity of the Fermi and Gamow-Teller response in double-beta-decay processes; (b) Restoration of the translational and Galilean invariance of the nuclear Hamiltonians and the calculation of Iπ = 1− states; sensitivity of the nuclear response to the spurious center-of-mass motion and μ-electron lepton-flavor-violation processes.
format Articulo
Articulo
author Bes, D. R.
Civitarese, Enrique Osvaldo
author_facet Bes, D. R.
Civitarese, Enrique Osvaldo
author_sort Bes, D. R.
title Symmetry violations in nuclear Hamiltonians and their consequences for electroweak decays
title_short Symmetry violations in nuclear Hamiltonians and their consequences for electroweak decays
title_full Symmetry violations in nuclear Hamiltonians and their consequences for electroweak decays
title_fullStr Symmetry violations in nuclear Hamiltonians and their consequences for electroweak decays
title_full_unstemmed Symmetry violations in nuclear Hamiltonians and their consequences for electroweak decays
title_sort symmetry violations in nuclear hamiltonians and their consequences for electroweak decays
publishDate 2003
url http://sedici.unlp.edu.ar/handle/10915/132524
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bdutipo_str Repositorios
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