Cosmic Strings and Electroweak Baryogenesis

Details Cosmic Strings and Electroweak Baryogenesis Cosmic Strings and Electroweak Baryogenesis

1994-03-03

arxiv.org/abs/hep-ph/9403215v1

Phys.Lett.B335:123-130,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

BROWN-HET-935 (February 1994), 17 pages, 1 figure (available as postscript file from the authors), uses phyzzx

Scientific paper

10.1016/0370-2693(94)91402-8

The electroweak symmetry is unbroken in the core of cosmic strings originating from a symmetry breaking at an energy higher than the electroweak scale $\eta_{EW}$. The dynamics of such strings may generate a baryon asymmetry below the electroweak symmetry breaking scale. This mechanism for electroweak baryogenesis is most efficient if the scale of string formation is only slightly higher than $\eta_{EW}$ \eg \ in theories of dynamical symmetry breaking) and if the strings are superconducting. The mechanism is also effective if the electroweak phase transition is second order.

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