Fermions in Brans-Dicke cosmology

Journal Article · Fri Jan 15 00:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.027301· OSTI ID:21409129

Samojeden, L L; Devecchi, F P; Kremer, G M ^[1]

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1. Departamento de Fisica, Universidade Federal do Parana, Caixa Postal 19044, 81531-990 Curitiba (Brazil)

Using the Brans-Dicke theory of gravitation we put under investigation a hypothetical universe filled with a fermionic field (with a self-interaction potential) and a matter constituent ruled by a barotropic equation of state. It is shown that the fermionic field [in combination with the Brans-Dicke scalar field {phi}(t)] could be responsible for a final accelerated era, after an initial matter dominated period.

• OSTI ID: 21409129
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 2; Other Information: DOI: 10.1103/PhysRevD.81.027301; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANES
COSMOLOGY
EQUATIONS OF STATE
FERMIONS
GRAVITATION
INTERACTIONS
SCALAR FIELDS
UNIVERSE
EQUATIONS