Binding-energy asymmetry in absorption explored through CDCC extended for complex potentials

In this work, we present an extension of the Continuum-Discretized Coupled-Channel formalism to include the effects of absorption and excitation of the core through its interaction with the removed particle in the description of nuclear breakup reactions. This extension is performed via the inclusio...

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Main Authors: M. Gómez-Ramos, J. Gómez-Camacho, A.M. Moro
Format: Article
Language:English
Published: Elsevier 2022-09-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269322003860
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author M. Gómez-Ramos
J. Gómez-Camacho
A.M. Moro
author_facet M. Gómez-Ramos
J. Gómez-Camacho
A.M. Moro
author_sort M. Gómez-Ramos
collection DOAJ
description In this work, we present an extension of the Continuum-Discretized Coupled-Channel formalism to include the effects of absorption and excitation of the core through its interaction with the removed particle in the description of nuclear breakup reactions. This extension is performed via the inclusion of a complex energy-dependent interaction between core and removed particle and the use of a binormal basis to ensure orthogonality. The formalism is applied to neutron breakup reactions with a 12C target at 70 MeV per nucleon for the loosely-bound 11Be nucleus and the more deeply-bound 41Ca nucleus, finding a moderate reduction in the cross section for the weakly-bound case and a strong reduction for the more deeply-bound case. Possible implications for the interpretation of intermediate-energy knockout reactions are discussed.
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spelling doaj.art-9145995ca14d47c4b5c9d9cca981b2572022-12-22T00:43:53ZengElsevierPhysics Letters B0370-26932022-09-01832137252Binding-energy asymmetry in absorption explored through CDCC extended for complex potentialsM. Gómez-Ramos0J. Gómez-Camacho1A.M. Moro2Departamento de Física Atómica, Molecular y Nuclear, Facultad de Física, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, Spain; Corresponding author.Departamento de Física Atómica, Molecular y Nuclear, Facultad de Física, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, Spain; Centro Nacional de Aceleradores (U. Sevilla, J. Andalucía, CSIC), Tomás Alva Edison, 7, 41092 Sevilla, SpainDepartamento de Física Atómica, Molecular y Nuclear, Facultad de Física, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, Spain; Instituto Interuniversitario Carlos I de Física Teórica y Computacional (iC1), Apdo. 1065, E-41080 Sevilla, SpainIn this work, we present an extension of the Continuum-Discretized Coupled-Channel formalism to include the effects of absorption and excitation of the core through its interaction with the removed particle in the description of nuclear breakup reactions. This extension is performed via the inclusion of a complex energy-dependent interaction between core and removed particle and the use of a binormal basis to ensure orthogonality. The formalism is applied to neutron breakup reactions with a 12C target at 70 MeV per nucleon for the loosely-bound 11Be nucleus and the more deeply-bound 41Ca nucleus, finding a moderate reduction in the cross section for the weakly-bound case and a strong reduction for the more deeply-bound case. Possible implications for the interpretation of intermediate-energy knockout reactions are discussed.http://www.sciencedirect.com/science/article/pii/S0370269322003860Continuum-discretized coupled channelsOptical modelDirect reactionsThree-body model
spellingShingle M. Gómez-Ramos
J. Gómez-Camacho
A.M. Moro
Binding-energy asymmetry in absorption explored through CDCC extended for complex potentials
Physics Letters B
Continuum-discretized coupled channels
Optical model
Direct reactions
Three-body model
title Binding-energy asymmetry in absorption explored through CDCC extended for complex potentials
title_full Binding-energy asymmetry in absorption explored through CDCC extended for complex potentials
title_fullStr Binding-energy asymmetry in absorption explored through CDCC extended for complex potentials
title_full_unstemmed Binding-energy asymmetry in absorption explored through CDCC extended for complex potentials
title_short Binding-energy asymmetry in absorption explored through CDCC extended for complex potentials
title_sort binding energy asymmetry in absorption explored through cdcc extended for complex potentials
topic Continuum-discretized coupled channels
Optical model
Direct reactions
Three-body model
url http://www.sciencedirect.com/science/article/pii/S0370269322003860
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