Spontaneous symmetry breaking and the energy of nuclear isobaric analog states

The asymmetry between proton and neutron numbers in a nucleus is viewed as a consequence of the spontaneous symmetry breaking of the isospin symmetry. The signatures of this effect, as it was suggested by Danchev, Khanna, and Umezawa and co-workers, may have been seen already in the energetics of th...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Civitarese, Enrique Osvaldo, Montani, Fernando Fabián, Reboiro, Marta, Toki, Hiroshi
Formato: Articulo
Lenguaje:Inglés
Publicado: 2000
Materias:
Física
Spin, parity, and isobaric spin
Flavor symmetries
Coulomb energies, analogue states
Nuclear structure models and methods
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/160193
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-160193
record_format dspace
spelling I19-R120-10915-1601932023-11-15T20:07:04Z http://sedici.unlp.edu.ar/handle/10915/160193 Spontaneous symmetry breaking and the energy of nuclear isobaric analog states Civitarese, Enrique Osvaldo Montani, Fernando Fabián Reboiro, Marta Toki, Hiroshi 2000 2023-11-15T16:16:33Z en Física Spin, parity, and isobaric spin Flavor symmetries Coulomb energies, analogue states Nuclear structure models and methods The asymmetry between proton and neutron numbers in a nucleus is viewed as a consequence of the spontaneous symmetry breaking of the isospin symmetry. The signatures of this effect, as it was suggested by Danchev, Khanna, and Umezawa and co-workers, may have been seen already in the energetics of the nuclear isobaric analog resonance state and in the systematic of double-odd double-even mass differences. In order to account for finite size effects, not included in Umezawa’s approach, we have calculated the mean field term of the Hamiltonian in a realistic nuclear single-particle basis. The nonvanishing value of the I₃ current in the nonperturbative vacuum is explained in terms of ρ meson exchange. Facultad de Ciencias Exactas Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Spin, parity, and isobaric spin
Flavor symmetries
Coulomb energies, analogue states
Nuclear structure models and methods
spellingShingle Física
Spin, parity, and isobaric spin
Flavor symmetries
Coulomb energies, analogue states
Nuclear structure models and methods
Civitarese, Enrique Osvaldo
Montani, Fernando Fabián
Reboiro, Marta
Toki, Hiroshi
Spontaneous symmetry breaking and the energy of nuclear isobaric analog states
topic_facet Física
Spin, parity, and isobaric spin
Flavor symmetries
Coulomb energies, analogue states
Nuclear structure models and methods
description The asymmetry between proton and neutron numbers in a nucleus is viewed as a consequence of the spontaneous symmetry breaking of the isospin symmetry. The signatures of this effect, as it was suggested by Danchev, Khanna, and Umezawa and co-workers, may have been seen already in the energetics of the nuclear isobaric analog resonance state and in the systematic of double-odd double-even mass differences. In order to account for finite size effects, not included in Umezawa’s approach, we have calculated the mean field term of the Hamiltonian in a realistic nuclear single-particle basis. The nonvanishing value of the I₃ current in the nonperturbative vacuum is explained in terms of ρ meson exchange.
format Articulo
Articulo
author Civitarese, Enrique Osvaldo
Montani, Fernando Fabián
Reboiro, Marta
Toki, Hiroshi
author_facet Civitarese, Enrique Osvaldo
Montani, Fernando Fabián
Reboiro, Marta
Toki, Hiroshi
author_sort Civitarese, Enrique Osvaldo
title Spontaneous symmetry breaking and the energy of nuclear isobaric analog states
title_short Spontaneous symmetry breaking and the energy of nuclear isobaric analog states
title_full Spontaneous symmetry breaking and the energy of nuclear isobaric analog states
title_fullStr Spontaneous symmetry breaking and the energy of nuclear isobaric analog states
title_full_unstemmed Spontaneous symmetry breaking and the energy of nuclear isobaric analog states
title_sort spontaneous symmetry breaking and the energy of nuclear isobaric analog states
publishDate 2000
url http://sedici.unlp.edu.ar/handle/10915/160193
work_keys_str_mv AT civitareseenriqueosvaldo spontaneoussymmetrybreakingandtheenergyofnuclearisobaricanalogstates
AT montanifernandofabian spontaneoussymmetrybreakingandtheenergyofnuclearisobaricanalogstates
AT reboiromarta spontaneoussymmetrybreakingandtheenergyofnuclearisobaricanalogstates
AT tokihiroshi spontaneoussymmetrybreakingandtheenergyofnuclearisobaricanalogstates
_version_ 1807221847799889920

Ejemplares similares