We introduce a new approach which is meant to be a step towards complete low-lying spectroscopy of odd nuclei. In the first applications, we limit ourselves to a magic core plus an extra neutron or proton. The model does not contain any free adjustable parameter, but is based on a Hartree-Fock (HF) description of particle states and Random Phase Approximation (RPA) calculations for core excitations. With respect to traditional particle-vibration coupling calculations, in which one can only address single-nucleon states and particle-vibration multiplets, we can also describe states of shell-model type like 2 particle-1 hole. The underlying spirit is, of course, related to filling the gap between shell-model-like approaches for low-lying spectroscopy, and the traditional HF+RPA approach to high-lying states like giant resonances.

The hybrid configuration mixing model and the spectroscopy of odd nuclei / G. Colò, P.F. Bortignon, G. Bocchi (ACTA PHYSICA POLONICA. B, PROCEEDINGS SUPPLEMENT). - In: Proceedings, 23rd Nuclear Physics Workshop 'Marie & Pierre Curie' on Essential Problems in Nuclear Physics : Kazimierz Dolny, Poland, September 27-October 2, 2016Cracow : Jagellonian University, 2017. - pp. 43-50 (( Intervento presentato al 23. convegno Nuclear Physics Workshop Marie and Pierre Curie on Essential Problems in Nuclear Physics tenutosi a Kazimierz Dolny, Poland nel 2016 [10.5506/APhysPolBSupp.10.43].

The hybrid configuration mixing model and the spectroscopy of odd nuclei

G. Colò;P.F. Bortignon;G. Bocchi
2017

Abstract

We introduce a new approach which is meant to be a step towards complete low-lying spectroscopy of odd nuclei. In the first applications, we limit ourselves to a magic core plus an extra neutron or proton. The model does not contain any free adjustable parameter, but is based on a Hartree-Fock (HF) description of particle states and Random Phase Approximation (RPA) calculations for core excitations. With respect to traditional particle-vibration coupling calculations, in which one can only address single-nucleon states and particle-vibration multiplets, we can also describe states of shell-model type like 2 particle-1 hole. The underlying spirit is, of course, related to filling the gap between shell-model-like approaches for low-lying spectroscopy, and the traditional HF+RPA approach to high-lying states like giant resonances.
Physics and Astronomy (all)
Settore FIS/04 - Fisica Nucleare e Subnucleare
European Nuclear Science and Application Research 2
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/557139
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