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Minimal supergravity inflation without slow gravitino

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Title
Minimal supergravity inflation without slow gravitino
Author(s)
Takahiro Terada
Publication Date
2021-06
Journal
Physical Review D, v.103, no.12
Publisher
American Physical Society
Abstract
© 2021 authors.We utilize a recently proposed cubic nilpotent superfield to realize inflation in supergravity with the minimal degrees of freedom: the inflaton, graviton, and massive gravitino. As an advantage, the resultant model is free from the catastrophic production of gravitinos due to its vanishing propagation speed. However, the model suffers from the standard gravitino problem, and its viability depends on the mass spectrum and the thermal history of the Universe.
URI
https://pr.ibs.re.kr/handle/8788114/10047
DOI
10.1103/PhysRevD.103.125022
ISSN
2470-0010
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
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