Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1994-08-16
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, talk given at the MG7 Meeting, 24-29 July 1994, KUNS 1286
Scientific paper
A globally supersymmetric model of inflation will not work in a generic supergravity theory because the higher order, nonrenormalisable supergravity corrections destroy the flatness of the inflaton's potential. In this talk I derive a form for the Kahler potential which eliminates these corrections if $ W = \partial W / \partial \varphi = \psi = 0 $ during inflation (where $W$ is the superpotential, the inflaton is contained in $\varphi$, and $ \partial W / \partial \psi \neq 0 $). I then point out that Kahler potentials of the required form often occur in superstrings and that the target space duality symmetries of superstrings often contain R-parities which would make $ W = \partial W / \partial \varphi = 0 $ automatic for $\psi = 0$.
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