The role of the continuum and the spurious 1⁻ transitions in incoherent μ⁻ - e⁻ conversion rate calculations

By using the Continuum RPA (CRPA) method, the incoherent transition strength of the exotic μ⁻ - e⁻ conversion in nuclei is investigated. The question whether excited nuclear states lying high in the continuum give an important contribution to the incoherent rate is addressed. Results for ⁴⁰Ca are...

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Autores principales: Papakonstantinou, Panagiota, Civitarese, Enrique Osvaldo, Kosmas, T. S., Wambach, Jochen
Formato: Articulo
Lenguaje:Inglés
Publicado: 2006
Materias:
Física
Incoherent muon electron conversion rate
Spurious center of mass excitation
Continuum RPAPA met
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123998
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123998
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Incoherent muon electron conversion rate
Spurious center of mass excitation
Continuum RPAPA met
spellingShingle Física
Incoherent muon electron conversion rate
Spurious center of mass excitation
Continuum RPAPA met
Papakonstantinou, Panagiota
Civitarese, Enrique Osvaldo
Kosmas, T. S.
Wambach, Jochen
The role of the continuum and the spurious 1⁻ transitions in incoherent μ⁻ - e⁻ conversion rate calculations
topic_facet Física
Incoherent muon electron conversion rate
Spurious center of mass excitation
Continuum RPAPA met
description By using the Continuum RPA (CRPA) method, the incoherent transition strength of the exotic μ⁻ - e⁻ conversion in nuclei is investigated. The question whether excited nuclear states lying high in the continuum give an important contribution to the incoherent rate is addressed. Results for ⁴⁰Ca are compared with those obtained previously for ²⁰⁸Pb. For both nuclei we then investigate in detail the admixture of spurious components in the rate coming from 1⁻ excitations, within the self-consistent CRPA with Skyrme interactions as well as within a less consistent version. We employ and compare two methods for removing the spurious strength: the use of effective operators, as done in a previous work for ²⁰⁸Pb, or simply the exclusion of the spurious state appearing close to zero energy. In all cases, the correction achieved is quite large.
format Articulo
Articulo
author Papakonstantinou, Panagiota
Civitarese, Enrique Osvaldo
Kosmas, T. S.
Wambach, Jochen
author_facet Papakonstantinou, Panagiota
Civitarese, Enrique Osvaldo
Kosmas, T. S.
Wambach, Jochen
author_sort Papakonstantinou, Panagiota
title The role of the continuum and the spurious 1⁻ transitions in incoherent μ⁻ - e⁻ conversion rate calculations
title_short The role of the continuum and the spurious 1⁻ transitions in incoherent μ⁻ - e⁻ conversion rate calculations
title_full The role of the continuum and the spurious 1⁻ transitions in incoherent μ⁻ - e⁻ conversion rate calculations
title_fullStr The role of the continuum and the spurious 1⁻ transitions in incoherent μ⁻ - e⁻ conversion rate calculations
title_full_unstemmed The role of the continuum and the spurious 1⁻ transitions in incoherent μ⁻ - e⁻ conversion rate calculations
title_sort role of the continuum and the spurious 1⁻ transitions in incoherent μ⁻ - e⁻ conversion rate calculations
publishDate 2006
url http://sedici.unlp.edu.ar/handle/10915/123998
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