TY - JOUR
T1 - Top-quark and Higgs-boson mass bounds from a numerical study of supersymmetric grand unified theories
AU - Arason, Haukur
AU - Castao, Diego
AU - Keszthelyi, Bettina
AU - Mikaelian, Samuel
AU - Piard, Eric
AU - Ramond, Pierre
AU - Wright, Brian
PY - 1991
Y1 - 1991
N2 - We run all the couplings of the minimal supersymmetric (SUSY) extension of the standard model, taking account of the Yukawa sector. After identifying the scale at which the gauge couplings unify, we place bounds on the top-quark mass by requiring equality of the bottom-quark and Yukawa couplings at that scale. For MSUSY=1 TeV, Mb=4.6 GeV, we find 139Mt194 GeV, which remarkably satisfy the -parameter bound. Furthermore, using the minimal SUSY boundary condition on the scalar quartic coupling, we obtain bounds for the mass of the Higgs boson, 44MHiggs120 GeV.
AB - We run all the couplings of the minimal supersymmetric (SUSY) extension of the standard model, taking account of the Yukawa sector. After identifying the scale at which the gauge couplings unify, we place bounds on the top-quark mass by requiring equality of the bottom-quark and Yukawa couplings at that scale. For MSUSY=1 TeV, Mb=4.6 GeV, we find 139Mt194 GeV, which remarkably satisfy the -parameter bound. Furthermore, using the minimal SUSY boundary condition on the scalar quartic coupling, we obtain bounds for the mass of the Higgs boson, 44MHiggs120 GeV.
KW - Grand Unification Theories
KW - Higgs-boson
KW - SUSY GUTs
KW - Supersymmetry
UR - https://www.scopus.com/pages/publications/4243734298
U2 - 10.1103/PhysRevLett.67.2933
DO - 10.1103/PhysRevLett.67.2933
M3 - Article
SN - 0031-9007
VL - 67
SP - 2933
EP - 2936
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
ER -