Stabilisation of semilocal strings by dark scalar condensates
arXiv:1612.03151 · doi:10.1103/PhysRevD.95.035003
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 stabilising effect on semilocal strings in the "visible" sector.
arXiv comment16 pages, 4 figures
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- Negative radiation pressure in the abelian Higgs model