Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-02-27
Phys.Lett. B435 (1998) 272-276
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX file, 9 pages, 1 fig.eps
Scientific paper
10.1016/S0370-2693(98)00780-1
In models of cosmological inflation motivated by dynamical supersymmetry breaking, the potential driving inflation may be characterized by inverse powers of a scalar field. These models produce observables similar to those typical of the hybrid inflation scenario: negligible production of tensor (gravitational wave) modes, and a blue scalar spectral index. In this short note, we show that, unlike standard hybrid inflation models, dynamical supersymmetric inflation (DSI) predicts a measurable deviation from a power-law spectrum of fluctuations, with a variation in the scalar spectral index $|dn / d(\ln k)|$ may be as large as 0.05. DSI can be observationally distinguished from other hybrid models with cosmic microwave background measurements of the planned sensitivity of the ESA's Planck Surveyor.
Kinney William H.
Riotto Antonio
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