Astronomy and Astrophysics – Astrophysics
Scientific paper
1994-06-16
Phys.Rev. D50 (1994) 5431-5434
Astronomy and Astrophysics
Astrophysics
4 pages, uuencoded compressed ps file, accepted by Physical Review D, HU-TFT-94-16
Scientific paper
10.1103/PhysRevD.50.5431
We explore constraints on various forms for the effective potential during inflation based upon a statistical comparison between inflation-generated fluctuations in the cosmic microwave background temperature and the COBE DMR results. Fits to the first year 53 A + B x 90 A + B cross correlation function using an effective potential of the form V(phi) = lambda*phi^x/x!, yield upper limits of x le 107 and x le 397 at the 1 sigma and 2 sigma confidence levels, while the same analysis produces a power law of index of n = 1.10 ^{+0.47}_{-0.64} which would imply an underestimate of x le 63 from the simple analytic relation between x and n . We also quantify new limits on the parameters for polynomial effective potentials. This work highlights the importance of a careful statistical treatment when seeking constraints on the inflation-generating effective potential.
Kurki-Suonio Hannu
Mathews Grant J.
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