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High Energy Physics - Theory

arXiv:0706.2355 (hep-th)
[Submitted on 15 Jun 2007 (v1), last revised 28 Nov 2007 (this version, v3)]

Title:Supergravity origin of the MSSM inflation

Authors:Kari Enqvist, Lotta Mether, Sami Nurmi
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Abstract: We consider the supergravity origin of the recently proposed MSSM inflationary model, which relies on the existence of a saddle point along a dimension six flat direction. We derive the conditions that the Kahler potential has to satisfy for the saddle point to exist irrespective of the hidden sector vevs. We show that these conditions are satisfied by a simple class of Kahler potentials, which we find to have a similar form as in various string theory compactifications. For these potentials, slow roll MSSM inflation requires no fine tuning of the soft supersymmetry breaking parameters.
Comments: v3: 10 pages, no figures; version accepted for publication. Typos corrected
Subjects: High Energy Physics - Theory (hep-th); Astrophysics (astro-ph); High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:0706.2355 [hep-th]
  (or arXiv:0706.2355v3 [hep-th] for this version)
  https://doi.org/10.48550/arXiv.0706.2355
Journal reference: JCAP 0711:014,2007
Related DOI: https://doi.org/10.1088/1475-7516/2007/11/014

Submission history

From: Sami Nurmi [view email]
[v1] Fri, 15 Jun 2007 18:57:47 UTC (10 KB)
[v2] Mon, 25 Jun 2007 07:52:38 UTC (10 KB)
[v3] Wed, 28 Nov 2007 15:38:07 UTC (11 KB)
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