ΔL = 2 hyperon semileptonic decays
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 theoretic...
Guardado en:
| Autores principales: | , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2007
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/126314 |
| Aporte de: |
| id |
I19-R120-10915-126314 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Física hyperon semileptonic decays loops of baryons Majorana neutrino |
| spellingShingle |
Ciencias Exactas Física hyperon semileptonic decays loops of baryons Majorana neutrino Barbero, César Alberto Li, Ling-Fong López Castro, G. Mariano, Alejandro Edgardo ΔL = 2 hyperon semileptonic decays |
| topic_facet |
Ciencias Exactas Física hyperon semileptonic decays loops of baryons Majorana neutrino |
| 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. |
| format |
Articulo Articulo |
| author |
Barbero, César Alberto Li, Ling-Fong López Castro, G. Mariano, Alejandro Edgardo |
| author_facet |
Barbero, César Alberto Li, Ling-Fong López Castro, G. Mariano, Alejandro Edgardo |
| author_sort |
Barbero, César Alberto |
| title |
ΔL = 2 hyperon semileptonic decays |
| 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 |
| publishDate |
2007 |
| url |
http://sedici.unlp.edu.ar/handle/10915/126314 |
| work_keys_str_mv |
AT barberocesaralberto dl2hyperonsemileptonicdecays AT lilingfong dl2hyperonsemileptonicdecays AT lopezcastrog dl2hyperonsemileptonicdecays AT marianoalejandroedgardo dl2hyperonsemileptonicdecays |
| bdutipo_str |
Repositorios |
| _version_ |
1764820450361212929 |