TY - JOUR
T1 - Light scalars and SU(5) predictions for sin2ϑW and the proton lifetime
AU - Hagiwara, Kaoru
AU - Halzen, Francis
AU - Hikasa, Ken ichi
PY - 1984/7/5
Y1 - 1984/7/5
N2 - We investigate the dependence of the weak angle θ{symbol}W and the proton lifetime τp on the structure of the Higgs sector in the SU(5) model of grand unification. It is remarkable that only a small number of low dimensional scalar multiplets are sufficient to stabilize the proton considerably while accommodating experimental information on sin2θ{symbol}W. We present some modifications of the minimal model which predict a proton lifetime of the order of its present experimental lower bound as well as a richer particle spectrum in the 100 GeV range.
AB - We investigate the dependence of the weak angle θ{symbol}W and the proton lifetime τp on the structure of the Higgs sector in the SU(5) model of grand unification. It is remarkable that only a small number of low dimensional scalar multiplets are sufficient to stabilize the proton considerably while accommodating experimental information on sin2θ{symbol}W. We present some modifications of the minimal model which predict a proton lifetime of the order of its present experimental lower bound as well as a richer particle spectrum in the 100 GeV range.
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U2 - 10.1016/0370-2693(84)90265-X
DO - 10.1016/0370-2693(84)90265-X
M3 - Article
AN - SCOPUS:0007195521
SN - 0370-2693
VL - 141
SP - 372
EP - 376
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 5-6
ER -