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dc.contributor.author | Abada, Asmaa | - |
dc.contributor.author | Teixeira, A. M. | - |
dc.contributor.author | Vicente, Avelino | - |
dc.contributor.author | Weiland, Carlos | - |
dc.date.accessioned | 2014-05-13T09:03:39Z | - |
dc.date.available | 2014-05-13T09:03:39Z | - |
dc.date.issued | 2014-02-21 | - |
dc.identifier.citation | Journal of High Energy Physics 2014: 91 (2014) | es_ES |
dc.identifier.uri | http://hdl.handle.net/10261/96559 | - |
dc.description.abstract | We 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. | es_ES |
dc.description.sponsorship | This work has been partly done under the ANR project CPV-LFV-LHC NT09-508531. The work of C. W. is suppported by the Spanish MINECO under grant FPA-2012-31880. The authors acknowledge partial support from the European Union FP7 ITN INVISIBLES (Marie Curie Actions, PITN-GA-2011-289442). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Springer Nature | es_ES |
dc.relation.isversionof | Publisher's version | es_ES |
dc.rights | openAccess | es_ES |
dc.subject | Rare Decays | es_ES |
dc.subject | Beyond Standard Model | es_ES |
dc.subject | Neutrino Physics | es_ES |
dc.subject | Kaon Physics | es_ES |
dc.title | Sterile neutrinos in leptonic and semileptonic decays | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.1007/JHEP02(2014)091 | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1007/JHEP02(2014)091 | es_ES |
dc.identifier.e-issn | 1029-8479 | - |
dc.rights.license | http://creativecommons.org/licenses/by/4.0/ | es_ES |
dc.contributor.funder | SCOAP | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.cerifentitytype | Publications | - |
item.openairetype | artículo | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
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sterile_neutrinos_Abada.pdf | 8,77 MB | Adobe PDF | Visualizar/Abrir |
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