Properties of Z2 strings

Details Properties of Z2 strings Properties of Z2 strings

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phrvd..35.3105a&link_type=abstract

Physical Review D (Particles and Fields), Volume 35, Issue 10, 15 May 1987, pp.3105-3115

Mathematics

Logic

22

Spontaneous Breaking Of Gauge Symmetries, Unified Theories And Models Of Strong And Electroweak Interactions

Scientific paper

We discuss various properties of cosmic strings formed by symmetry breaking of the form G-->K×Z2. The unbroken Z2 can be embedded in different U(1) subgroups of G, giving topologically equivalent but dynamically different strings. We obtain the string mass in terms of the Higgs-field vacuum expectation value for various values of the gauge and quartic Higgs-field coupling constants by numerical calculation. We find that in a wide range of realistic cases, unless there is an intermediate K×U(1) phase, the lowest-mass embedding gives strings which are gauge equivalent to antistrings, in which case the beadlike solitons of Hindmarsh and Kibble do not occur.

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