How does the SU(2)×U(1) symmetry break in the early Universe\?

Details How does the SU(2)×U(1) symmetry break in the early Universe\? How does the SU(2)×U(1) symmetry break in the early Universe\?

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvl..56....7t&link_type=abstract

Physical Review Letters, Volume 56, Issue 1, January 6, 1986, pp.7-10

Physics

6

Electroweak Interactions, Spontaneous Breaking Of Gauge Symmetries, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

The effect of perturbative infrared singularities on the finite-temperature effective potential in the standard model with a light Higgs boson is investigated. Together with the Coleman-Weinberg term, it promotes the full gauge-symmetry breaking. The transition to the U(1) vacuum via quantum tunneling is expected to occur at some temperature ~100 MeV. However, without knowledge of dynamical details, one cannot conclusively decide whether the chiral or the (full) gauge symmetry breaks first.

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