Lepton phenomenology of Stueckelberg portal to dark sector

Vista sencilla de ítem
dc.contributor.authorKachanovich, A.
dc.contributor.authorKovalenko, S.
dc.contributor.authorKuleshov, S.
dc.contributor.authorLyubovitskij, V.
dc.contributor.authorZhevlakov, A.
dc.date.accessioned2022-05-04T16:11:31Z
dc.date.available2022-05-04T16:11:31Z
dc.date.issued2022-04
dc.descriptionIndexación: Scopus.es
dc.description.abstractWe propose an extension of the Standard Model (SM) with a UA′(1) gauge-invariant dark sector connected to the SM via a new portal - the Stueckelberg portal, arising in the framework of dark photon A′ mass generation via the Stueckelberg mechanism. This portal opens through the effective dim=5 operators constructed from the covariant term of the auxiliary Stueckelberg scalar field σ providing flavor nondiagonal renormalizable couplings of both σ and A′ to the SM fermions ψ. The Stueckelberg scalar plays a role of Goldstone boson in the generation of mass of the dark photon. Contrary to the conventional kinetic mixing portal, in our scenario, flavor diagonal A′-ψ couplings are not proportional to the fermion charges and are, in general, flavor nondiagonal. These features drastically change the phenomenology of dark photon A′ relaxing or avoiding some previously established experimental constraints. We focus on the phenomenology of the described scenario of the Stueckelberg portal in the lepton sector and analyze the contribution of the dark sector fields A′ to the anomalous magnetic moment of muon (g-2)μ, lepton flavor-violating decays li→lkγ, and μ-e conversion in nuclei. We obtain limits on the model parameters from the existing data on the corresponding observables.es
dc.description.urihttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.105.075004
dc.identifier.citationPhysical Review D, Volume 105, Issue 7, April 2022, Article number 075004.es
dc.identifier.doi10.1103/PhysRevD.105.075004
dc.identifier.issn2470-0010
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/22456
dc.language.isoenes
dc.publisherAmerican Physical Societyes
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://journals.aps.org/open_access.html
dc.subjectLepton phenomenologyes
dc.subjectStueckelberg portales
dc.subjectdark sectores
dc.titleLepton phenomenology of Stueckelberg portal to dark sectores
dc.typeArtículoes
Archivos
Bloque original
Mostrando 1 - 1 de 1
Miniatura
Nombre:
Kachanovich_Lepton phenomenology of Stueckelberg portal to dark sector.pdf
Tamaño:
593.56 KB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO EN INGLES
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar
Colecciones
FCE - Artículos de Revista