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2010

Observable Gravity Waves from Supersymmetric Hybrid Inflation II

Rehman, Mansoor Ur, Shafi, Qaisar, Wickman, Joshua R.

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It is shown that a tensor-to-scalar ratio close to r = 0.03, which can be observed by Planck, is realized in supersymmetric hybrid inflation models with TeV-scale soft supersymmetry breaking terms.

This extends our previous analysis, which also found r <~ 0.03 but employed intermediate scale soft terms.
Other cosmological observables such as the scalar spectral index are in good agreement with the WMAP data.

Observable Gravity Waves from Supersymmetric Hybrid Inflation II · Around

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M. Bastero-Gil, S. F. King, and Q. Shafi, Phys. Lett. B651
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M. ur Rehman, V. N. Senoguz, and Q. Shafi, Phys. Rev. D75
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M. U. Rehman, Q. Shafi, and J. R. Wickman, Phys. Rev. D79
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2009
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M. U. Rehman, Q. Shafi, and J. R. Wickman, Phys. Lett. B683
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M. U. Rehman, Q. Shafi, and J. R. Wickman, Phys.Lett. B688
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It is interesting to compare this result with that of a non-SUSY hybrid inflation model, where radiative corrections are important in obtaining r ≲ 0.004 r\lesssim 0.004 (for n s ≈ 0.968 n_{s}\approx 0.968 ) with sub-Planckian field values [ 10 ]
Cited in the paper.

Then

Q. Shafi and J. R. Wickman, (2010), arXiv:1009.5340 [hep-ph]
Original
2010
Closest in time.
E. Komatsu et al. , (2010), arXiv:1001.4538 [astro-ph.CO]
Original
2010
Closest in time.

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