https://doi.org/10.1140/epjc/s10052-021-09595-7
Regular Article - Theoretical Physics
SUSY-breaking scenarios with a mildly violated 
symmetry
Laboratory of Physics, Faculty of Engineering, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece
Received:
1
September
2020
Accepted:
28
August
2021
Published online:
9
September
2021
New realizations of the gravity-mediated SUSY breaking are presented consistently with an R symmetry. We employ monomial superpotential terms for the hidden-sector (goldstino) superfield and Kähler potentials parameterizing compact or non-compact Kähler manifolds. Their scalar curvature may be systematically related to the R charge of the goldstino so that Minkowski solutions without fine tuning are achieved. A mild violation of the R symmetry by a higher order term in the Kähler potentials allows for phenomenologically acceptable masses for the R axion. In all cases, non-vanishing soft SUSY-breaking parameters are obtained and a solution to the 
problem of MSSM may be accommodated by conveniently applying the Giudice–Masiero mechanism.
© The Author(s) 2021
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