Gravity, cosmology and particle physics without the cosmological constant problem
Jun, 1998Citations per year
Abstract: (arXiv)
This essay elucidates recent achievements of the "nongravitating vacuum energy" (NGVE) theory" which has the feature that a shift of the Lagrangian density by a constant does not affect dynamics. In the first order formalism, a constraint appears that enforces the vanishing of the cosmological constant \Lambda. Standard dynamics of gauge unified theories (including fermions) and their SSB appear if a four index field strength condensate is present. At a vacuum state there is exact balance to zero of the gauge fields condensate and the original scalar fields potential. As a result it is possible to combine the solution of the \Lambda problem with inflation and transition to a \Lambda =0 phase without fine tuning after a reheating period. The model opens new possibilities for a solution of the hierarchy problem.- vacuum state: energy
- cosmological constant
- gauge field theory: condensation
- potential: scalar
- inflation
- spontaneous symmetry breaking
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