This article is cited in 13 papers

GRAVITY, ASTROPHYSICS

Vacuum energy, cosmological constant and Standard Model physics

G. L. Alberghi^a, A. Yu. Kamenshchik^ab, A. Tronconi^a, G. P. Vacca^a, G. Venturi<sup>a

a</sup> Dipartimento di Fisica and INFN, 40126 Bologna, Italy
^b Landau Institute for Theoretical Physics, Russian Academy of Sciences, Moscow, 117940, Russia

Abstract: The conditions for the cancellation of one loop contributions to vacuum energy (both U.V. divergent and finite) coming from the Standard Model (SM) fields are examined. It is proven that this is not possible unless one introduces besides several bosons, at least one massive fermion having mass within specific ranges. On examining one of the simplest SM extensions satisfying the constraints one finds that the mass range of the lightest massive boson is compatible with the present Higgs mass bounds. We briefly address the possible treatment of the presence of interactions.

PACS: 04.62.+v, 11.55.Hx, 98.80.Cq, 95.36.+x

Received: 28.10.2008

Language: English

 English version: Journal of Experimental and Theoretical Physics Letters, 2008, 88:11, 705–710

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