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Inflation from Gaugino Condensation in Supergravity
New Phys.: Sae Mulli 2017; 67: 1546~1550
Published online December 29, 2017;
© 2017 New Physics: Sae Mulli.

Bumseok KYAE*

Department of Physics, Pusan National University, Busan 46241, Korea
Correspondence to:
Received August 16, 2017; Revised September 27, 2017; Accepted October 18, 2017.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
The mass parameter responsible for inflation in the simplest original F-term inflationary model can be generated if the gauginos in a hidden sector condense and the inflaton field linearly contributes to the relevant gauge kinetic function. We point out that the relevant local and/or global symmetries in the F-term inflationary models can be broken even during inflation if the inflaton field couples non-linearly to hidden sector gauginos and waterfall fields. Accordingly, the resultant topological objects are diluted away during inflation, so the monopole and/or the cosmic string problems in the simplest original F-term inflationary model can be resolved in this case.
PACS numbers: 98.80.Cq, 12.60.Jv, 04.65.+e
Keywords: F-term inflation, Gaugino condensation, Supergravity, Monopole problem

April 2018, 68 (4)
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