# Observable gravity waves from supersymmetric hybrid inflation. II.

@article{Rehman2011ObservableGW, title={Observable gravity waves from supersymmetric hybrid inflation. II.}, author={Mansoor ur Rehman and Qaisar Shafi and Joshua R. Wickman}, journal={Physical Review D}, year={2011}, volume={696}, pages={438-446} }

Abstract We identify models of supersymmetric hybrid inflation in which the tensor-to-scalar ratio, a canonical measure of gravity waves produced during inflation, can be as large as 0.03 or so, which will be tested by the Planck satellite experiment. The parameter space achieving this result is found to correspond to an intermediate-scale soft mass for the inflaton. The scalar spectral index lies within the WMAP one sigma bounds, while | d n s / d ln k | ≲ 0.01 .

## 33 Citations

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## References

SHOWING 1-10 OF 41 REFERENCES

Supersymmetric hybrid inflation redux

- Economics, Physics
- 2010

Abstract We discuss the important role played during inflation by one of the soft supersymmetry breaking terms in the inflationary potential of supersymmetric hybrid inflation models. With minimal…

Testing supersymmetric grand unified models of inflation

- Physics
- 2003

Abstract We reconsider a class of well motivated supersymmetric models in which inflation is associated with the breaking of a gauge symmetry G to H, with the symmetry breaking scale M∼1016 GeV.…

Hybrid inflation in supergravity

- Physics
- 1997

We propose a simple realization of hybrid inflation in supergravity. Inflation in this scenario is relatively short, and inflationary density perturbations fall down on large scales, which…

Supersymmetric And Smooth Hybrid Inflation In The Light Of WMAP3

- Physics
- 2007

In their minimal form both supersymmetric and smooth hybrid inflation yield a scalar spectral index n{sub s} close to 0.98, to be contrasted with the result n{sub s}=0.951{sub -0.019}{sup +0.015}…

Origin of matter in the inflationary cosmology

- Physics
- 1991

Abstract We propose a new scenario for generating the baryon asymmetry in the universe within the framework of the inflationary cosmology. The decay of the weakly coupled inflaton field via the heavy…

Supersymmetric hybrid inflation with non-minimal Kähler potential

- Physics
- 2007

Abstract Minimal supersymmetric hybrid inflation based on a minimal Kahler potential predicts a spectral index n s ≳ 0.98 . On the other hand, WMAP three year data prefers a central value n s ≈ 0.95…

Super hilltop inflation

- Physics
- 2009

In this paper, we consider logarithmic radiative corrections and higher order terms to the supersymmetric hilltop F- and D-term hybrid inflation models. Conventional F- and D-term hybrid inflation…

Confronting hybrid inflation in supergravity with CMB data

- Physics
- 2005

F-term GUT inflation coupled to N = 1 supergravity is confronted with CMB data. Corrections to the string mass-per-unit-length away from the Bogomolny limit are taken into account. We find that a…

Minimal supersymmetric hybrid inflation, flipped SU(5) and proton decay

- Physics
- 2010

Abstract Minimal supersymmetric hybrid inflation utilizes a canonical Kahler potential and a renormalizable superpotential which is uniquely determined by imposing a U(1) R -symmetry. In computing…

Constraints on supersymmetric hybrid inflation models

- Physics
- 2006

We point out that the inclusion of a string component contributing around 5% to the CMB power spectrum amplitude on large scales can increase the preferred value of the spectral index ns of density…