1993/06/29 by Michael Dine, Dine, Michael
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9306328
14 pages, SCIPP 93/17
arxiv created 1993/06/29 · openalex publication_date 1993/06/29 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider certain naturalness questions in supersymmetric theories. Various suggestions which give rise to squark degeneracies are reviewed. A stringy scenario, discussed by Kaplunovsky and Louis, is the only one which leads to complete degeneracy of squarks and sleptons at the high scale. Alternatives include the possible existence of a gauged non-Abelian horizontal symmetry, broken at some scale, and theories in which the ``messengers" of supersymmetry breaking are gauge interactions. A model of the latter type is described, in which supersymmetry is \it dynamically broken at TeV energies. Models of this type can solve many of the naturalness problems of supersymmetric theories, and predict a rich phenomenology at SSC energies.