Regular Article - Theoretical Physics
A minimal supersymmetric SU(5) missing-partner model
Theoretical Physics and Cosmology Group, Department of Physics, King’s College London, Strand, WC2R 2LS, London, UK
2 Theoretical Physics Department, CERN, 1211, Geneva 23, Switzerland
3 National Institute of Chemical Physics and Biophysics, Rävala 10, 10143, Tallinn, Estonia
4 Tsung-Dao Lee Institute, Shanghai Jiao Tong University, 200240, Shanghai, China
5 Department of Physics, University of Tokyo, Bunkyo-ku, 113-0033, Tokyo, Japan
6 William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, 55455, Minneapolis, MN, USA
Accepted: 13 June 2021
Published online: 24 June 2021
We explore a missing-partner model based on the minimal SU(5) gauge group with , and Higgs representations, assuming a super-GUT CMSSM scenario in which soft supersymmetry-breaking parameters are universal at some high scale above the GUT scale . We identify regions of parameter space that are consistent with the cosmological dark matter density, the measured Higgs mass and the experimental lower limit on . These constraints can be satisfied simultaneously along stop coannihilation strips in the super-GUT CMSSM with 3.5–5 where the input gaugino mass 15–25 TeV, corresponding after strong renormalization by the large GUT Higgs representations between and to 2.5–5 TeV and 13–20 TeV, with the light-flavor squarks significantly heavier. We find that years throughout the allowed range of parameter space, within the range of the next generation of searches with the JUNO, DUNE and Hyper-Kamiokande experiments.
© The Author(s) 2021
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