Abstract
A novel realization of the gravity-mediated supersymmetry breaking is presented, taking into account a continuous global symmetry. Consistently with it, we employ a linear superpotential for the hidden-sector superfield and a Kähler potential parametrizing the Kähler manifold with constant curvature . The classical vacuum energy vanishes without unnatural fine tuning and nonvanishing soft supersymmetry-breaking parameters, of the order of the gravitino mass, arise. A solution to the problem of minimal supersymmetric Standard Model may be also achieved by conveniently applying the Giudice-Masiero mechanism. The potentially troublesome axion may acquire acceptably large mass by explicitly breaking the symmetry in the Kähler potential through a quartic term which does not affect, though, the achievements above.
- Received 9 February 2019
- Revised 1 July 2019
DOI:https://doi.org/10.1103/PhysRevD.100.055013
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society