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A-term inflation and the minimal supersymmetric standard model.

Bueno-Sanchez, Juan Carlos and Dimopoulos, Konstantinos and Lyth, David H. (2007) A-term inflation and the minimal supersymmetric standard model. Journal of Cosmology and Astroparticle Physics, 2007 (1). 015. ISSN 1475-7516

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Abstract

The parameter space for A-term inflation is explored with W = λpp/pMPp−3. With p = 6 and λp~1, the observed spectrum and spectral tilt can be obtained with soft mass of order 102 GeV but not with a much higher mass. The case p = 3 requires λp~10−9 to 10−12. The ratio m/A requires fine-tuning, which may be justified on environmental grounds. An extension of the minimal supersymmetric standard model to include non-renormalizable terms and/or Dirac neutrino masses might support either A-term inflation or modular inflation.

Item Type: Article
Journal or Publication Title: Journal of Cosmology and Astroparticle Physics
Uncontrolled Keywords: inflation ; cosmology of theories beyond the SM
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23465
Deposited By: Dr Konstantinos Dimopoulos
Deposited On: 21 Jan 2009 10:07
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 16:10
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23465

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