Natural supergravity inflation
Aug, 199614 pages
Published in:
- Phys.Lett.B 391 (1997) 271-280
e-Print:
- hep-ph/9608336 [hep-ph]
Report number:
- OUTP-96-48-P,
- OUTP-96-48P
View in:
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Abstract: (Elsevier)
We identify a new mechanism in supergravity theories which leads to successful inflation without any need for fine-tuning. The simplest model yields a spectrum of density fluctuations tilted away from scale-invariance and negligible gravitational waves. We demonstrate that this is consistent with the observed large-scale structure for a cold dark matter dominated, critical density universe. The model can be tested through measurements of microwave background anisotropy on small angular scales.Note:
- 14 pages (revtex) including 3 figures (epsf); Minor changes to Introduction and discussion and modified Figure 1; to appear in Phys. Lett. B; Postscript also available from ftp://ftp.physics.ox.ac.uk/pub/local/users/sarkar/SugraInfl.ps.gz
- 98.80.Cq
- 04.65.+e
- 98.65.Dx
- 98.70.Vc
- inflation
- supergravity
- density: fluctuation
- dark matter
- potential
- cosmic background radiation: anisotropy
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