https://doi.org/10.1140/epjc/s10052-021-08947-7
Regular Article - Theoretical Physics
-attractors from supersymmetry breaking
1
Department of Physics, Faculty of Science, Chulalongkorn University, Thanon Phayathai, Pathumwan, 10330, Bangkok, Thailand
2
Institute of Experimental and Theoretical Physics, Al-Farabi Kazakh National University, 71 Al-Farabi Avenue, 050040, Almaty, Kazakhstan
Received:
17
September
2020
Accepted:
3
February
2021
Published online:
17
February
2021
We construct new models of inflation and spontaneous supersymmetry breaking in de Sitter vacuum, with a single chiral superfield, where inflaton is the superpartner of the goldstino. Our approach is based on hyperbolic Kähler geometry, and a gauged (non-axionic) 
symmetry rotating the chiral scalar field by a phase. The gauge field combines with the angular component of the chiral scalar to form a massive vector, and single-field inflation is driven by the radial part of the scalar. We find that in a certain parameter range they can be approximated by simplest Starobinsky-like (E-model) -attractors, thus predicting 
and r within 
CMB constraints. Supersymmetry (and R-symmetry) is broken at a high scale with the gravitino mass 
GeV, and the fermionic sector also includes a heavy spin-1/2 field. In all the considered cases the inflaton is the lightest field of the model.
© The Author(s) 2021
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