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arxiv: 1612.03151 · v2 · submitted 2016-12-09 · ✦ hep-th · hep-ph

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Stabilisation of semilocal strings by dark scalar condensates

P\'eter Forg\'acs , \'Arp\'ad Luk\'acs
Authors on Pith no claims yet
classification ✦ hep-th hep-ph
keywords darkgaugehiggssemilocalstringsfieldsscalarsector
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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 stabilising effect on semilocal strings in the "visible" sector.

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