528 research outputs found
Window For Higgs Boson Mass From Gauge-Higgs Unification
We consider six dimensional gauge models compactified on the orbifold T^2/Z_N
(N=2,3,4,6) such that the Standard Model (SM) Higgs doublet arises from the
extra-dimensional components of the gauge field. For \Lambda \leq 10^{19} GeV,
where \Lambda denotes the compactification scale, we obtain 114.4 GeV \leq m_H
\leq 164 GeV for the SM Higgs boson mass. We also consider gauge-Higgs-top and
gauge-Higgs-bottom Yukawa unification which respectively yield m_H =
131^{+4}_{-5} GeV and m_H = 150^{+2}_{-2} GeV for a top quark pole mass M_t
=170.9^{+1.8}_{-1.8} GeV. As a special case we recover the result m_H \leq 132
GeV previously obtained for five dimensional models.Comment: 15 pages, 7 figure
Higgs Boson Mass from Orbifold GUTs with Split Supersymmetry
We consider orbifold GUTs with N=1 supersymmetry in which the Standard Model
(SM) gauge couplings are unified at M_GUT =~ 2 x 10^16 GeV with one of the
third family (charged) Yukawa couplings. With split supersymmetry the SM Higgs
mass is estimated to be 131 +/- 10 GeV for gauge-top quark Yukawa unification,
which increases to 146 +/- 8 GeV for gauge-bottom quark (or gauge-tau lepton)
Yukawa unification.Comment: 1+15 pages, 7 figures. v2: Higgs mass estimations and figures
slightly changed due to a correction in our calculation
Higgs Boson Mass From Orbifold GUTs
We consider a class of seven-dimensional N=1 supersymmetric orbifold GUTs in
which the Standard Model (SM) gauge couplings and one of the Yukawa couplings
(top quark, bottom quark or tau lepton) are unified, without low energy
supersymmetry, at M_{GUT} \simeq 4 \times 10^{16} GeV. With gauge-top quark
Yukawa coupling unification the SM Higgs boson mass is estimated to be 135 \pm
6 GeV, which increases to 144 \pm 4 GeV for gauge-bottom quark (or gauge-tau
lepton) Yukawa coupling unification.Comment: 20 pages, 4 figures, 4 tables, Complete two-loop RGEs included,
references added, version to appear in PR
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