1112.4796 (Marcin Badziak et al.)

LHC constraints on Yukawa unification in SO(10)    [PDF]

Marcin Badziak, Kazuki Sakurai

LHC constraints on the recently proposed SUSY SO(10) GUT model with
top-bottom-tau Yukawa unification are investigated. In this model, various
phenomenological constraints are in concord with the Yukawa unification thanks
to the negative sign of \mu, D-term splitting in the soft scalar masses and
non-universal gaugino masses generated by a non-zero F-term in a 24-dimensional
representation of SU(5) \subset SO(10). After discussing the impact of the
CP-odd Higgs boson mass bound on this model, we provide a detailed analysis of
the recent direct SUSY searches performed by ATLAS and investigate the
constraints on this SO(10) model. At 95% confidence level, the lower limit on
the gluino mass is found to be 675 GeV. Assuming an integrated luminosity of 10
fb^{-1}, this bound may be extended to 1.1 TeV if the right-handed down squark
is lighter than about 1 TeV.

View original: http://arxiv.org/abs/1112.4796