Angular and polarization observables for Majorana-mediated B decays with effective interactions
We probe the effective field theory extending the Standard Model with a sterile neutrino in B meson decays at B factories and lepton colliders, using angular and polarization observables. We put bounds on different effective operators characterized by their distinct Dirac–Lorentz structure, and prob...
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| Altri autori: | , |
| Natura: | article |
| Lingua: | inglese |
| Pubblicazione: |
2020
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| Accesso online: | https://hdl.handle.net/20.500.12008/31674 |
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| _version_ | 1868889992387887104 |
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| author | Duarte, Lucía |
| author2 | Zapata, Gabriel Sampayo, Oscar A. |
| author2_role | author author |
| author_browse | Duarte, Lucía Sampayo, Oscar A. Zapata, Gabriel |
| author_facet | Duarte, Lucía Zapata, Gabriel Sampayo, Oscar A. |
| author_role | author |
| collection | COLIBRI |
| dc.contributor.none.fl_str_mv | Duarte Lucía, Universidad de la República (Uruguay). Facultad de Ingeniería Zapata Gabriel, Instituto de Investigaciones Físicas de Mar del Plata (Argentina) Sampayo Oscar A., Universidad Nacional de Mar del Plata (Argentina). Departamento de Física |
| dc.creator.none.fl_str_mv | Duarte, Lucía Zapata, Gabriel Sampayo, Oscar A. |
| dc.date.none.fl_str_mv | 2020 2022-05-26T12:41:36Z 2022-05-26T12:41:36Z |
| dc.format.none.fl_str_mv | 16 h. application/pdf |
| dc.identifier.none.fl_str_mv | Duarte, L, Zapata, G y Sampayo, O. "Angular and polarization observables for Majorana-mediated B decays with effective interactions". European Physical Journal C. [en línea] 2020, 80: 896. 16 h. DOI: 10.1140/epjc/s10052-020-08471-0 1434-6052 https://hdl.handle.net/20.500.12008/31674 10.1140/epjc/s10052-020-08471-0 |
| dc.language.none.fl_str_mv | en eng |
| dc.publisher.none.fl_str_mv | Società Italiana di Fisica |
| dc.relation.none.fl_str_mv | European Physical Journal C, 2020, 80:896 |
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess Licencia Creative Commons Atribución (CC - By 4.0) |
| dc.source.none.fl_str_mv | reponame:COLIBRI instname:Universidad de la República instacron:Universidad de la República |
| dc.title.none.fl_str_mv | Angular and polarization observables for Majorana-mediated B decays with effective interactions |
| dc.type.none.fl_str_mv | Artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| description | We probe the effective field theory extending the Standard Model with a sterile neutrino in B meson decays at B factories and lepton colliders, using angular and polarization observables. We put bounds on different effective operators characterized by their distinct Dirac–Lorentz structure, and probe the N-mediated B decays sensitivity to these interactions. We define a forward–backward asymmetry AℓγFB between the muon and photon directions for the B→μνγ decay, which allows us to separate the SM contribution from the effective lepton number conserving and violating processes, mediated by a near on-shell N. Using the most stringent constraints on the effective parameter space from Belle and BaBar we find that a measurement of the final polarization Pτ in the rare B−→ℓ−1ℓ−2π+ decays can help us infer the scalar or vector interaction content in the N production or decay vertices. We find that the B meson decays are more sensitive to scalar operators. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | anni_2afb4f05d7644ca38c8fe9df35e2d5d2 |
| identifier_str_mv | Duarte, L, Zapata, G y Sampayo, O. "Angular and polarization observables for Majorana-mediated B decays with effective interactions". European Physical Journal C. [en línea] 2020, 80: 896. 16 h. DOI: 10.1140/epjc/s10052-020-08471-0 1434-6052 10.1140/epjc/s10052-020-08471-0 |
| instacron_str | Universidad de la República |
| institution | Universidad de la República |
| instname_str | Universidad de la República |
| language | eng |
| language_invalid_str_mv | en |
| network_acronym_str | anni |
| network_name_str | oai-lr-anni |
| oai_identifier_str | oai:colibri.udelar.edu.uy:20.500.12008/31674 |
| publishDate | 2020 |
| publishDateSort | 2020 |
| publisher.none.fl_str_mv | Società Italiana di Fisica |
| reponame_str | COLIBRI |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | Licencia Creative Commons Atribución (CC - By 4.0) |
| spelling | Angular and polarization observables for Majorana-mediated B decays with effective interactionsDuarte, LucíaZapata, GabrielSampayo, Oscar A.We probe the effective field theory extending the Standard Model with a sterile neutrino in B meson decays at B factories and lepton colliders, using angular and polarization observables. We put bounds on different effective operators characterized by their distinct Dirac–Lorentz structure, and probe the N-mediated B decays sensitivity to these interactions. We define a forward–backward asymmetry AℓγFB between the muon and photon directions for the B→μνγ decay, which allows us to separate the SM contribution from the effective lepton number conserving and violating processes, mediated by a near on-shell N. Using the most stringent constraints on the effective parameter space from Belle and BaBar we find that a measurement of the final polarization Pτ in the rare B−→ℓ−1ℓ−2π+ decays can help us infer the scalar or vector interaction content in the N production or decay vertices. We find that the B meson decays are more sensitive to scalar operators.Società Italiana di FisicaDuarte Lucía, Universidad de la República (Uruguay). Facultad de IngenieríaZapata Gabriel, Instituto de Investigaciones Físicas de Mar del Plata (Argentina)Sampayo Oscar A., Universidad Nacional de Mar del Plata (Argentina). Departamento de Física2022-05-26T12:41:36Z2022-05-26T12:41:36Z2020Artículoinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion16 h.application/pdfDuarte, L, Zapata, G y Sampayo, O. "Angular and polarization observables for Majorana-mediated B decays with effective interactions". European Physical Journal C. [en línea] 2020, 80: 896. 16 h. DOI: 10.1140/epjc/s10052-020-08471-01434-6052https://hdl.handle.net/20.500.12008/3167410.1140/epjc/s10052-020-08471-0reponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaenengEuropean Physical Journal C, 2020, 80:896Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución (CC - By 4.0)oai:colibri.udelar.edu.uy:20.500.12008/316742026-04-14T10:09:47Z |
| spellingShingle | Angular and polarization observables for Majorana-mediated B decays with effective interactions Duarte, Lucía |
| status_str | publishedVersion |
| title | Angular and polarization observables for Majorana-mediated B decays with effective interactions |
| title_full | Angular and polarization observables for Majorana-mediated B decays with effective interactions |
| title_fullStr | Angular and polarization observables for Majorana-mediated B decays with effective interactions |
| title_full_unstemmed | Angular and polarization observables for Majorana-mediated B decays with effective interactions |
| title_short | Angular and polarization observables for Majorana-mediated B decays with effective interactions |
| title_sort | Angular and polarization observables for Majorana-mediated B decays with effective interactions |
| url | https://hdl.handle.net/20.500.12008/31674 |