Effective cosmological constant from TeV-scale physics: Simple field-theoretic model

Details Effective cosmological constant from TeV-scale physics: Simple field-theoretic model Effective cosmological constant from TeV-scale physics: Simple field-theoretic model

2011-01-06

arxiv.org/abs/1101.1281v5

Phys.Rev.D84:023011,2011

Physics

High Energy Physics

High Energy Physics - Theory

16 pages; v5: published version

Scientific paper

10.1103/PhysRevD.84.023011

Adopting the q-theory approach to the cosmological constant problem, a simple field-theoretic model is presented which generates an effective cosmological constant (remnant vacuum energy density) of the observed order of magnitude, \Lambda_{eff} \sim (meV)^4, if there exist new TeV-scale ultramassive particles with electroweak interactions. The model is simple, in the sense that it involves only a few types of fields and two energy scales, the gravitational energy scale E_{Planck}\sim 10^{15} TeV and the electroweak (new-physics) energy scale E_{ew}\sim 1-10 TeV.

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