Título:
Majorana neutrinos with effective interactions in B decays
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Autor:
Duarte, Lucía
Peressutti, Javier
Sampayo, Oscar A.
Peressutti, Javier
Sampayo, Oscar A.
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Artículo
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Año de publicación:
2019
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Resumen:
We investigate the possible contribution of Majorana neutrinos to Bmeson decays in an effective interactionformalism, in the mass range 0.5GeV<mN<5GeV.We study the decay of the B meson via B−→μ−μ−π+at LHCb, which is a signal for leptonic number violationand the presence of Majorana neutrinos, and put bounds ondifferent new physics contributions, characterized by their Dirac- Lorentz structure. We also study the bounds imposedby the radiative B decay (B−→μ−νγ) results from Belle.The obtained bounds are more restrictive than previous values found for dimension 6 four-fermion contact vectorial andscalar Majorana neutrino interactions in the context of the left–right symmetric model for higher Majorana masses at the LHC, showing that the direct calculation of the effective N interactions contribution to different processes can help toput more stringent bounds to different UV-complete modelsparameterized by an effective Lagrangian.
Descripción:
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Springer
EN:
European Physical Journal C: Particles and Fields, 2019, v. 79
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Citación:
Duarte, L, Peressutti, J y Sampayo, O. "Majorana neutrinos with effective interactions in B decays". European Physical Journal C: Particles and Fields [en línea] 2019, v. 79.p. https://doi.org/10.1140/epjc/s10052-019-7104-x
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Licencia Creative Common Atribución (CC-BY)
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| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| MajoranaNeutrinosWithEffective.pdf | — | 891.04 KB | Adobe PDF |