Abstract : Semilocal and electroweak strings are well known to be unstable against unwinding by the condensation of the second Higgs component in their cores. A large class of current models of dark matter contains dark scalar fields coupled to the Higgs sector of the Standard Model (Higgs portal) and/or dark U(1) gauge fields. It is shown that Higgs-portal-type couplings and a gauge kinetic mixing term of the dark U(1) gauge field have a significant stabilizing effect on semilocal strings in the “visible” sector.
https://hal.archives-ouvertes.fr/hal-01554470
Contributeur : Inspire Hep
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Soumis le : lundi 3 juillet 2017 - 17:57:47
Dernière modification le : mercredi 20 mars 2019 - 10:33:15
Péter Forgács, Árpád Lukács. Stabilization of semilocal strings by dark scalar condensates. Phys.Rev.D, 2017, 95 (3), pp.035003. 〈10.1103/PhysRevD.95.035003〉. 〈hal-01554470〉
