Chaplygin gas braneworld inflation according to WMAP7 data

Journal Article · Wed Dec 15 04:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.123506· OSTI ID:21503735

Zarrouki, R ^[1]; Bennai, M ^[1]

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1. Laboratoire de Physique de la Matiere Condensee (URAC10) Faculte des Sciences Ben M'sik, B.P. 7955, Universite Hassan II-Mohammedia, Casablanca (Morocco)

We consider a Chaplygin gas model with an exponential potential in framework of braneworld inflation. We apply the slow-roll approximation in the high-energy limit to derive various inflationary spectrum perturbation parameters. We show that the inflation observables depend only on the e-folding number N and the final value of the slow-roll parameter {epsilon}{sub end}. Whereas for small running of the scalar spectral index (dn{sub s}/dlnk), the inflation observables are in good agreement with recent WMAP7 data.

• OSTI ID: 21503735
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 12 Vol. 82; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
APPROXIMATIONS
BRANES
CALCULATION METHODS
COSMOLOGICAL MODELS
DISTURBANCES
INFLATIONARY UNIVERSE
M-THEORY
MATHEMATICAL MODELS
PERTURBATION THEORY
SIMULATION
SPECTRA