Gravity, cosmology and particle physics without the cosmological constant problem

E. I. Guendelman; A. B. Kaganovich

doi:10.1142/S0217732398001662

Gravity, cosmology and particle physics without the cosmological constant problem

E. I. Guendelman, A. B. Kaganovich

Department of Physics

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

This letter 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 Λ. Standard dynamics of gauge unified theories (including fermions) and their SSB appear if a four-index field strength condensate is present. At the 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 Λ problem with inflation and transition to a Λ = 0 phase without fine tuning after a reheating period. The model opens new possibilities for a solution of the hierarchy problem.

Original language	English
Pages (from-to)	1583-1586
Number of pages	4
Journal	Modern Physics Letters A
Volume	13
Issue number	19
DOIs	https://doi.org/10.1142/S0217732398001662
State	Published - 21 Jun 1998

ASJC Scopus subject areas

Nuclear and High Energy Physics
Astronomy and Astrophysics
General Physics and Astronomy

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AU - Kaganovich, A. B.

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AB - This letter 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 Λ. Standard dynamics of gauge unified theories (including fermions) and their SSB appear if a four-index field strength condensate is present. At the 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 Λ problem with inflation and transition to a Λ = 0 phase without fine tuning after a reheating period. The model opens new possibilities for a solution of the hierarchy problem.

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Gravity, cosmology and particle physics without the cosmological constant problem

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