E6 motivated UMSSM confronts experimental data
Abstract
We test E6 realisations of a generic U(1)' extended Minimal Supersymmetric Standard Model (UMSSM), parametrised in terms of the mixing angle pertaining to the new U(1)' sector, θE6, against all currently available data, from space to ground experiments, from low to high energies. We find that experimental constraints are very restrictive and indicate that large gauge kinetic mixing and θE 6≈ -π/3 are required within this theoretical construct to achieve compliance with current data. The consequences are twofold. On the one hand, large gauge kinetic mixing implies that the Z' boson emerging from the breaking of the additional U(1)' symmetry is rather wide since it decays mainly into WW pairs. On the other hand, the preferred θE 6 value calls for a rather specific E6 breaking pattern different from those commonly studied. We finally delineate potential signatures of the emerging UMSSM scenario in both Large Hadron Collider (LHC) and in Dark Matter (DM) experiments.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- May 2020
- DOI:
- 10.1007/JHEP05(2020)123
- arXiv:
- arXiv:2004.01415
- Bibcode:
- 2020JHEP...05..123F
- Keywords:
-
- Supersymmetry Phenomenology;
- High Energy Physics - Phenomenology
- E-Print:
- J. High Energ. Phys. 2020, 123 (2020)