Matrix elements of four-quark operators and Delta L= 2 hyperon decays

Autores
Barbero, Cesar Alberto; Ling-Fong, Li; Lopez Castro, G; Mariano, Alejandro Edgardo
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The study of neutrinoless double beta decays of nuclei and hyperons requires the calculation of hadronic matrix elements of local four-quark operators that change the total charge by two units. Using a low energy effective Lagrangian that induces these transitions, we compute these hadronic matrix elements in the framework of the Massachussetts Institute of Technology bag model. As an illustrative example we evaluate the amplitude and transition rate of Sigma- ---> p e- e-, a decay process that violates lepton number by two units (L = 2). The relevant matrix element is evaluated without assuming the usual factorization approximation of the four-quark operators and the results obtained in both approaches are compared
Fil: Barbero, Cesar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Fisica La Plata; Argentina;
Fil: Ling-Fong, Li. University Of Carnegie Mellon; Estados Unidos de América;
Fil: Lopez Castro, G. Departamento de Física, Centro de Investigación y de Estudios Avanzados; Mexico;
Fil: Mariano, Alejandro Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Fisica La Plata; Argentina;
Materia
bag model
hyperon decays
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/613
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/613
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Matrix elements of four-quark operators and Delta L= 2 hyperon decaysBarbero, Cesar AlbertoLing-Fong, LiLopez Castro, GMariano, Alejandro Edgardobag modelhyperon decayshttps://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.3The study of neutrinoless double beta decays of nuclei and hyperons requires the calculation of hadronic matrix elements of local four-quark operators that change the total charge by two units. Using a low energy effective Lagrangian that induces these transitions, we compute these hadronic matrix elements in the framework of the Massachussetts Institute of Technology bag model. As an illustrative example we evaluate the amplitude and transition rate of Sigma- ---> p e- e-, a decay process that violates lepton number by two units (L = 2). The relevant matrix element is evaluated without assuming the usual factorization approximation of the four-quark operators and the results obtained in both approaches are comparedFil: Barbero, Cesar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Fisica La Plata; Argentina;Fil: Ling-Fong, Li. University Of Carnegie Mellon; Estados Unidos de América;Fil: Lopez Castro, G. Departamento de Física, Centro de Investigación y de Estudios Avanzados; Mexico;Fil: Mariano, Alejandro Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Fisica La Plata; Argentina;Amer Physical Soc2013-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/613Barbero, Cesar Alberto; Ling-Fong, Li; Lopez Castro, G; Mariano, Alejandro Edgardo; Matrix elements of four-quark operators and Delta L= 2 hyperon decays; Amer Physical Soc; Physical Review D; 87; 010; 2-2013; 1-6;1550-7998enginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.87.036010info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:13:55Zoai:ri.conicet.gov.ar:11336/613instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:13:55.936CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Matrix elements of four-quark operators and Delta L= 2 hyperon decays
title Matrix elements of four-quark operators and Delta L= 2 hyperon decays
spellingShingle Matrix elements of four-quark operators and Delta L= 2 hyperon decays
Barbero, Cesar Alberto
bag model
hyperon decays
title_short Matrix elements of four-quark operators and Delta L= 2 hyperon decays
title_full Matrix elements of four-quark operators and Delta L= 2 hyperon decays
title_fullStr Matrix elements of four-quark operators and Delta L= 2 hyperon decays
title_full_unstemmed Matrix elements of four-quark operators and Delta L= 2 hyperon decays
title_sort Matrix elements of four-quark operators and Delta L= 2 hyperon decays
dc.creator.none.fl_str_mv Barbero, Cesar Alberto
Ling-Fong, Li
Lopez Castro, G
Mariano, Alejandro Edgardo
author Barbero, Cesar Alberto
author_facet Barbero, Cesar Alberto
Ling-Fong, Li
Lopez Castro, G
Mariano, Alejandro Edgardo
author_role author
author2 Ling-Fong, Li
Lopez Castro, G
Mariano, Alejandro Edgardo
author2_role author
author
author
dc.subject.none.fl_str_mv bag model
hyperon decays
topic bag model
hyperon decays
purl_subject.fl_str_mv https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.3
dc.description.none.fl_txt_mv The study of neutrinoless double beta decays of nuclei and hyperons requires the calculation of hadronic matrix elements of local four-quark operators that change the total charge by two units. Using a low energy effective Lagrangian that induces these transitions, we compute these hadronic matrix elements in the framework of the Massachussetts Institute of Technology bag model. As an illustrative example we evaluate the amplitude and transition rate of Sigma- ---> p e- e-, a decay process that violates lepton number by two units (L = 2). The relevant matrix element is evaluated without assuming the usual factorization approximation of the four-quark operators and the results obtained in both approaches are compared
Fil: Barbero, Cesar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Fisica La Plata; Argentina;
Fil: Ling-Fong, Li. University Of Carnegie Mellon; Estados Unidos de América;
Fil: Lopez Castro, G. Departamento de Física, Centro de Investigación y de Estudios Avanzados; Mexico;
Fil: Mariano, Alejandro Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Fisica La Plata; Argentina;
description The study of neutrinoless double beta decays of nuclei and hyperons requires the calculation of hadronic matrix elements of local four-quark operators that change the total charge by two units. Using a low energy effective Lagrangian that induces these transitions, we compute these hadronic matrix elements in the framework of the Massachussetts Institute of Technology bag model. As an illustrative example we evaluate the amplitude and transition rate of Sigma- ---> p e- e-, a decay process that violates lepton number by two units (L = 2). The relevant matrix element is evaluated without assuming the usual factorization approximation of the four-quark operators and the results obtained in both approaches are compared
publishDate 2013
dc.date.none.fl_str_mv 2013-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/613
Barbero, Cesar Alberto; Ling-Fong, Li; Lopez Castro, G; Mariano, Alejandro Edgardo; Matrix elements of four-quark operators and Delta L= 2 hyperon decays; Amer Physical Soc; Physical Review D; 87; 010; 2-2013; 1-6;
1550-7998
url http://hdl.handle.net/11336/613
identifier_str_mv Barbero, Cesar Alberto; Ling-Fong, Li; Lopez Castro, G; Mariano, Alejandro Edgardo; Matrix elements of four-quark operators and Delta L= 2 hyperon decays; Amer Physical Soc; Physical Review D; 87; 010; 2-2013; 1-6;
1550-7998
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.87.036010
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Amer Physical Soc
publisher.none.fl_str_mv Amer Physical Soc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842980740413784064
score 13.004268

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