Article ID Journal Published Year Pages File Type
10723362 Physics Letters B 2012 5 Pages PDF
Abstract
Supersymmetric models with t-b-τ Yukawa coupling unification and unified gaugino masses at the GUT scale-with μ>0-show a mild preference for light gluino masses mg˜≲500GeV. This range of mg˜ is now essentially ruled out by LHC searches. We show that a heavier gluino with mg˜∼0.5-3TeV can also be compatible with excellent t-b-τ Yukawa coupling unification in supersymmetric models with non-universal Higgs masses (NUHM2). The gluino in such models is the lightest colored sparticle, while the squark sector displays an inverted mass hierarchy with mq˜∼5-20TeV. We present some LHC testable benchmark points for which the lightest Higgs boson mass mh≃125GeV. We also discuss LHC signatures of Yukawa-unified models with heavier gluinos. We expect gluino pair production followed by decay to final states containing four b-jets plus four W-bosons plus missing ET to occur at possibly observable rates at LHC.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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