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Minimal inverse-seesaw mechanism with Abelian flavour symmetries

2021-05-04Journal article Open access
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dc.contributor.authorCamara, Henrique B.
dc.contributor.authorGonzalez Felipe, Ricardo
dc.contributor.authorJoaquim, F. R.
dc.date.accessioned2021-06-14T15:41:16Z
dc.date.available2021-06-14T15:41:16Z
dc.date.issued2021-05-04
dc.description.abstractWe study the phenomenology of the minimal (2, 2) inverse-seesaw model supplemented with Abelian flavour symmetries. To ensure maximal predictability, we establish the most restrictive flavour patterns which can be realised by those symmetries. This setup requires adding an extra scalar doublet and two complex scalar singlets to the Standard Model, paving the way to implement spontaneous CP violation. It is shown that such CP-violating effects can be successfully communicated to the lepton sector through couplings of the scalar singlets to the new sterile fermions. The Majorana and Dirac CP phases turn out to be related, and the active-sterile neutrino mixing is determined by the active neutrino masses, mixing angles and CP phases. We investigate the constraints imposed on the model by the current experimental limits on lepton flavour-violating decays, especially those on the branching ratio BR(mu -> e gamma) and the capture rate CR(mu - e, Au). The prospects to further test the framework put forward in this work are also discussed in view of the projected sensitivities of future experimental searches sensitive to the presence of heavy sterile neutrinos. Namely, we investigate at which extent upcoming searches for mu -> e gamma, mu -> 3e and mu - e conversion in nuclei will be able to test our model, and how complementary will future high-energy collider and beam-dump experiments be in that task.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCAMARA, Henrique B.; FELIPE, Ricardo G.; JOAQUIM, Filipe R. – Minimal inverse-seesaw mechanism with Abelian flavour symmetries. Journal of High Energy Physics. ISSN 1029-8479. N.º 5 (2021), pp. 1-67pt_PT
dc.identifier.doi10.1007/JHEP05(2021)021pt_PT
dc.identifier.issn1029-8479
dc.identifier.urihttp://hdl.handle.net/10400.21/13444
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationUIDB/00777/2020 - FCTpt_PT
dc.relationUIDP/00777/2020 - FCTpt_PT
dc.relationCERN/FIS-PAR/0004/2019 - FCTpt_PT
dc.relationPTDC/FIS-PAR/29436/2017 - FCTpt_PT
dc.relation.publisherversionhttps://link.springer.com/content/pdf/10.1007/JHEP05(2021)021.pdfpt_PT
dc.subjectNeutrino physicspt_PT
dc.subjectBeyond standard modelpt_PT
dc.titleMinimal inverse-seesaw mechanism with Abelian flavour symmetriespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage67pt_PT
oaire.citation.issue5pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of High Energy Physicspt_PT
person.familyNameGonzalez Felipe
person.familyNameRafael Joaquim
person.givenNameRicardo
person.givenNameFilipe
person.identifier.ciencia-id481B-F248-D189
person.identifier.ciencia-id551D-6D20-8323
person.identifier.orcid0000-0003-3563-6626
person.identifier.orcid0000-0002-6711-4606
person.identifier.ridA-3071-2009
person.identifier.scopus-author-id8914041100
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication3d2f331e-ccab-4610-b241-5b91ae15e8f1
relation.isAuthorOfPublicationf43b9b16-4670-49b9-9e8c-1b80dde20157
relation.isAuthorOfPublication.latestForDiscoveryf43b9b16-4670-49b9-9e8c-1b80dde20157

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