Supersymmetric grand unification with a fourth generation?

Dubicki, J.E. and Froggatt, C.D. (2003) Supersymmetric grand unification with a fourth generation? Physics Letters B, 567(1-2), 46 -52. (doi: 10.1016/j.physletb.2003.06.017)

Abstract

The possibility of incorporating a chiral fourth generation into a SUSY-GUT is investigated. Precision fits to electroweak observables require us to introduce light supersymmetric particles, with masses less than M/sub Z/. These particles might also provide decay channels for the fourth generation quarks of mass ~100 GeV. We also require tan beta to lie in the range 1.50 lt or approximately=tan beta 1.75 and obtain an upper limit on the lightest Higgs boson mass in the MSSM4 of 152 GeV.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Froggatt, Professor Colin
• Authors: Dubicki, J.E., and Froggatt, C.D.
• Subjects: Q Science > QC Physics
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physics Letters B
• Publisher: Elsevier BV
• ISSN: 0370-2693
• ISSN (Online): 1873-2445