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More hilltop inflation models

Jul, 2007

11 pages

Published in:

JCAP 12 (2007) 004

e-Print:

0707.3826 [hep-ph]

DOI:

10.1088/1475-7516/2007/12/004

View in:

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Abstract: (arXiv)

Using analytic expressions, we explore the parameter space for hilltop inflation models with a potential of the form

V_0\pm m^2\phi^2 -a\phi^p

. With the positive sign and

p>2

this converts the original hybrid inflation model into a hilltop model, allowing the spectral index to agree with the observed value

n=0.95

. In some cases the observed value is theoretically favored, while in others there is only the generic prediction |n-1|\lsim 1.

Note:

11 pages, 25 figures

inflation
cosmology of theories beyond the SM
physics of the early universe
power spectrum
inflation: hybrid
inflation: modular
black hole: formation
curvature: perturbation
potential
power spectrum

References(54)

Figures(0)

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