Lyubovitskij, Valery E.Zhevlakov, Alexey S.Kachanovich, AliakseiKuleshov, Serguei2024-09-262024-09-262023-03Physical Review D. Volume 107, Issue 51. March 2023. Article number 0550062470-0010https://repositorio.unab.cl/handle/ria/60573Indexación: ScopusWe study the non-Abelian SU(2)D extension of the U(1)D Stueckelberg portal, which plays the role of mediator between the Standard Model (SM) and dark sector. This portal is specified by the Stueckelberg mechanism for generation of dark gauge boson masses. The proposed U(1)D - SU(2)D Stueckelberg portal has a connection with SM matter fields, in analogy with the familon model. We derive bounds on the couplings of dark portal bosons and SM particles, which govern diagonal and nondiagonal flavor transitions of quarks and leptons. © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.enSU(2)D ExtensionStueckelberg PortalStandard Model (SM)Dark SectorParticle Dark MatterArtículoCC BY 4.0 Attribution 4.0 International Deed10.1103/PhysRevD.107.055006