| Texto completo | |
| Autor(es): |
Rosauro-Alcaraz, S.
;
Leal, L. P. S.
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | EUROPEAN PHYSICAL JOURNAL C; v. 84, n. 8, p. 16-pg., 2024-08-10. |
| Resumo | |
The first observation of B(B+-> K+nu nu)bythe Belle II experiment lies almost 3 sigma away from the Standard Model expectation. In this letter we study this result in the SMEFT, extended by a light right-handed neutrino. We explore the correlations between the measureddecay rate and other observables, such asB(B -> K & lowast;nu nu)andFL(B -> K & lowast;nu nu), showing that they could disentangle among scenarios involving left-handed neutrinos and those with the right-handed ones. Furthermore, we find that thehigh -p Ttails of D rell-Yan processes studied at LHC pro-vide important constraints that help us exclude some of the scenarios consistent with the Belle II result. (AU) | |
| Processo FAPESP: | 23/00643-0 - Desvendando a origen do sabor de quarks e leptons |
| Beneficiário: | Renata Zukanovich Funchal |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 23/12330-7 - Neutrinos e leptoquarks |
| Beneficiário: | Luighi Pierre Santos Leal |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Doutorado |
| Processo FAPESP: | 21/02283-6 - Neutrinos e Violação da Carga Leptônica |
| Beneficiário: | Luighi Pierre Santos Leal |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |