CERN Accelerating science

Article
Report number	arXiv:1407.0253 ; DESY-14-100 ; CPHT-RR037.0614
Title	Large-Field Inflation and Supersymmetry Breaking
Author(s)	Buchmuller, Wilfried (CERN) ; Dudas, Emilian (DESY ; Ecole Polytechnique, CPHT) ; Heurtier, Lucien (Ecole Polytechnique, CPHT ; DESY) ; Wieck, Clemens (DESY)
Publication	2014
Imprint	01 Jul 2014
Number of pages	17
Note	Comments: 19 pages, 3 figures 19 pages, 3 figures, comments and references added
In:	JHEP 09 (2014) 053
DOI	10.1007/JHEP09(2014)053
Subject category	hep-th
Abstract	Large-field inflation is an interesting and predictive scenario. Its non-trivial embedding in supergravity was intensively studied in the recent literature, whereas its interplay with supersymmetry breaking has been less thoroughly investigated. We consider the minimal viable model of chaotic inflation in supergravity containing a stabilizer field, and add a Polonyi field. Furthermore, we study two possible extensions of the minimal setup. We show that there are various constraints: first of all, it is very hard to couple an O'Raifeartaigh sector with the inflaton sector, the simplest viable option being to couple them only through gravity. Second, even in the simplest model the gravitino mass is bounded from above parametrically by the inflaton mass. Therefore, high-scale supersymmetry breaking is hard to implement in a chaotic inflation setup. As a separate comment we analyze the simplest chaotic inflation construction without a stabilizer field, together with a supersymmetrically stabilized Kahler modulus. Without a modulus, the potential of such a model is unbounded from below. We show that a heavy modulus cannot solve this problem.
Copyright/License	publication: © 2014-2025 The Author(s) (License: CC-BY-4.0), sponsored by SCOAP³

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