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The journal of high energy physics, 2012-08, Vol.2012 (8), Article 28
Ort / Verlag
Berlin/Heidelberg: Springer-Verlag
Erscheinungsjahr
2012
Quelle
Springer journals
Beschreibungen/Notizen
A
bstract
We employ the Yukawa coupling unification condition,
y
t
=
y
b
=
y
τ
at
M
GUT
, inspired by supersymmetric SO(10) models, to estimate the lightest Higgs boson mass as well as masses of the associated squarks and gluino. We employ non-universal soft masses, dictated by SO(10) symmetry, for the gauginos. Furthermore, the soft masses for the two scalar Higgs doublets are set equal at
M
GUT
, and in some examples these are equal to the soft masses for scalars in the matter multiplets. For
μ >
0,
M
2
>
0, where
M
2
denotes the SU(2) gaugino mass, essentially perfect
t
-
b
-τ Yukawa unification is possible, and it predicts a Higgs mass of 122-124 GeV with a theoretical uncertainty of about ±3 GeV. The corresponding gluino and the first two family squarks have masses ≳ 3 TeV. We present some LHC testable benchmark points which also show the presence of neutralino-stau coannihilation in this scenario. The well-known MSSM parameter tan β ≈ 47.