How does the SU(2)×U(1) symmetry break in the early Universe?
- 6 January 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 56 (1) , 7-10
- https://doi.org/10.1103/physrevlett.56.7
Abstract
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.Keywords
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