ΔL = 2 hyperon semileptonic decays
- Autores
- Barbero, César Alberto; Li, Ling-Fong; López Castro, G.; Mariano, Alejandro Edgardo
- Año de publicación
- 2007
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We compute the rates of semileptonic BA → BBl⁻l⁻ (l = e or μ) hyperon transitions in a model where intermediate states involve loops of baryons and a Majorana neutrino. These rates turn out to be well below present experimental bounds and other theoretical estimates. From the experimental upper limit on the Ξ⁻ → pμ⁻μ⁻ decay, we derive the bound
μμ> ≤ 22 TeV for the effective Majorana mass of the muon neutrino. Also, an estimate of background contributions for these decays due to the allowed BA → BBl⁻l⁻ ν⁻ν⁻ decays is provided.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Física
hyperon semileptonic decays
loops of baryons
Majorana neutrino - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/126314
Ver los metadatos del registro completo
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ΔL = 2 hyperon semileptonic decaysBarbero, César AlbertoLi, Ling-FongLópez Castro, G.Mariano, Alejandro EdgardoCiencias ExactasFísicahyperon semileptonic decaysloops of baryonsMajorana neutrinoWe compute the rates of semileptonic B<sub>A</sub> → B<sub>B</sub>l⁻l⁻ (l = e or μ) hyperon transitions in a model where intermediate states involve loops of baryons and a Majorana neutrino. These rates turn out to be well below present experimental bounds and other theoretical estimates. From the experimental upper limit on the Ξ⁻ → pμ⁻μ⁻ decay, we derive the bound <m <sub>μμ</sub>> ≤ 22 TeV for the effective Majorana mass of the muon neutrino. Also, an estimate of background contributions for these decays due to the allowed B<sub>A</sub> → B<sub>B</sub>l⁻l⁻ ν⁻ν⁻ decays is provided.Facultad de Ciencias Exactas2007-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/126314enginfo:eu-repo/semantics/altIdentifier/issn/1550-7998info:eu-repo/semantics/altIdentifier/issn/1550-2368info:eu-repo/semantics/altIdentifier/arxiv/0709.2431info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.76.116008info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-17T10:13:03Zoai:sedici.unlp.edu.ar:10915/126314Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-17 10:13:03.788SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
ΔL = 2 hyperon semileptonic decays |
| title |
ΔL = 2 hyperon semileptonic decays |
| spellingShingle |
ΔL = 2 hyperon semileptonic decays Barbero, César Alberto Ciencias Exactas Física hyperon semileptonic decays loops of baryons Majorana neutrino |
| title_short |
ΔL = 2 hyperon semileptonic decays |
| title_full |
ΔL = 2 hyperon semileptonic decays |
| title_fullStr |
ΔL = 2 hyperon semileptonic decays |
| title_full_unstemmed |
ΔL = 2 hyperon semileptonic decays |
| title_sort |
ΔL = 2 hyperon semileptonic decays |
| dc.creator.none.fl_str_mv |
Barbero, César Alberto Li, Ling-Fong López Castro, G. Mariano, Alejandro Edgardo |
| author |
Barbero, César Alberto |
| author_facet |
Barbero, César Alberto Li, Ling-Fong López Castro, G. Mariano, Alejandro Edgardo |
| author_role |
author |
| author2 |
Li, Ling-Fong López Castro, G. Mariano, Alejandro Edgardo |
| author2_role |
author author author |
| dc.subject.none.fl_str_mv |
Ciencias Exactas Física hyperon semileptonic decays loops of baryons Majorana neutrino |
| topic |
Ciencias Exactas Física hyperon semileptonic decays loops of baryons Majorana neutrino |
| dc.description.none.fl_txt_mv |
We compute the rates of semileptonic B<sub>A</sub> → B<sub>B</sub>l⁻l⁻ (l = e or μ) hyperon transitions in a model where intermediate states involve loops of baryons and a Majorana neutrino. These rates turn out to be well below present experimental bounds and other theoretical estimates. From the experimental upper limit on the Ξ⁻ → pμ⁻μ⁻ decay, we derive the bound <m <sub>μμ</sub>> ≤ 22 TeV for the effective Majorana mass of the muon neutrino. Also, an estimate of background contributions for these decays due to the allowed B<sub>A</sub> → B<sub>B</sub>l⁻l⁻ ν⁻ν⁻ decays is provided. Facultad de Ciencias Exactas |
| description |
We compute the rates of semileptonic B<sub>A</sub> → B<sub>B</sub>l⁻l⁻ (l = e or μ) hyperon transitions in a model where intermediate states involve loops of baryons and a Majorana neutrino. These rates turn out to be well below present experimental bounds and other theoretical estimates. From the experimental upper limit on the Ξ⁻ → pμ⁻μ⁻ decay, we derive the bound <m <sub>μμ</sub>> ≤ 22 TeV for the effective Majorana mass of the muon neutrino. Also, an estimate of background contributions for these decays due to the allowed B<sub>A</sub> → B<sub>B</sub>l⁻l⁻ ν⁻ν⁻ decays is provided. |
| publishDate |
2007 |
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2007-12 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/126314 |
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http://sedici.unlp.edu.ar/handle/10915/126314 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/1550-7998 info:eu-repo/semantics/altIdentifier/issn/1550-2368 info:eu-repo/semantics/altIdentifier/arxiv/0709.2431 info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.76.116008 |
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openAccess |
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