Relativistic RPA for Isobaric Analogue and Gamow-Teller Resonances in Closed Shell Nuclei

We perform a self-consistent relativistic RPA calculation for the isobaric analogue and Gamow-Teller resonances based on relativistic mean field theory results for the ground states of 48Ca, 90Zr and 208Pb. We use the parameter set NL1 for the σ, ω and ρ mesons, and experimental values for the pion...

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Detalles Bibliográficos
Autores principales: De Conti, C., Galeao, A. P., Krmpotic, Francisco
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 1998
Materias:
Física
Physics
Isobaric process
Nucleon
Nuclear physics
Meson
Mean field theory
Pion
Open shell
Intensity (heat transfer)
Quantum electrodynamics
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/122847
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:We perform a self-consistent relativistic RPA calculation for the isobaric analogue and Gamow-Teller resonances based on relativistic mean field theory results for the ground states of 48Ca, 90Zr and 208Pb. We use the parameter set NL1 for the σ, ω and ρ mesons, and experimental values for the pion and nucleon. An extra parameter, related to the intensity of the contact term in the pion-exchange interaction, is crucial to reproduce the latter resonances.

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