English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/96559
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Sterile neutrinos in leptonic and semileptonic decays

AutorAbada, Asmaa; Teixeira, A. M.; Vicente, Avelino ; Weiland, Carlos
Palabras claveRare Decays
Beyond Standard Model
Neutrino Physics
Kaon Physics
Fecha de publicación21-feb-2014
EditorSpringer
CitaciónJournal of High Energy Physics 2014: 91 (2014)
ResumenWe address the impact of a modified W ℓν coupling on a wide range of observables, such as τ leptonic and mesonic decays, leptonic decays of pseudoscalar mesons, as well as semileptonic meson decays. In particular, we concentrate on deviations from lepton flavour universality, focusing on the ratios R P = Γ(P → ℓν)/Γ(P → ℓ′ν), with P = K,π,D,D s , R(D) = Γ(B + → Dτ + ν)/Γ(B + → Dℓ + ν), R τ = Γ(τ → μνν)/Γ(τ → eνν), RℓτP = Γ(τ → Pν)/Γ(P → ℓν), and BR(B → τν). We further consider leptonic gauge boson decays, such as W → ℓν and Z → νν. For all the above observables, we provide the corresponding complete analytical expressions, derived for the case of massive neutrinos. Working in the framework of the Standard Model extended by additional sterile fermions, which mix with the active (left-handed) neutrinos, we numerically study the impact of active-sterile mixings on the above mentioned observables.
Versión del editorhttp://dx.doi.org/10.1007/JHEP02(2014)091
URIhttp://hdl.handle.net/10261/96559
DOI10.1007/JHEP02(2014)091
E-ISSN1029-8479
Aparece en las colecciones: (IFT) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
sterile_neutrinos_Abada.pdf8,77 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.