Minimalism in Inflation Model Building

Details Minimalism in Inflation Model Building Minimalism in Inflation Model Building

1997-06-18

arxiv.org/abs/hep-ph/9706408v1

Phys.Lett. B417 (1998) 20-26

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, LaTeX file

Scientific paper

10.1016/S0370-2693(97)01357-9

In this paper we demand that a successfull inflationary scenario should follow from a model entirely motivated by particle physics considerations. We show that such a connection is indeed possible within the framework of concrete supersymmetric Grand Unified Theories where the doublet-triplet splitting problem is naturally solved. The Fayet-Iliopoulos D-term of a gauge $U(1)_{\xi}$ symmetry, which plays a crucial role in the solution of the doublet-triplet splitting problem, simultaneously provides a built-in inflationary slope protected from dangerous supergravity corrections.

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