Cosmological constant, grand unification, and symmetry behavior in the early universe

Details Cosmological constant, grand unification, and symmetry behavior in the early universe Cosmological constant, grand unification, and symmetry behavior in the early universe

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980phrvd..22.2380m&link_type=abstract

Physical Review D (Particles and Fields), Volume 22, Issue 10, 15 November 1980, pp.2380-2383

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Scientific paper

In spontaneously broken gauge theories with Higgs mesons, letting the cosmological constant vanish at the present epoch implies a large vacuum condensate energy in the early universe after symmetry restoration. In grand unified theories, it could complicate the current scenarios for baryon generation in the universe. We suggest a mechanism where the cosmological constant (or the vacuum energy density) may be made arbitrarily small throughout the history of the universe.

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