TY - JOUR
T1 - Gauge hierarchy in SU(3)c×SU(3)L×SU(3)R and low energy implications
AU - Dvali, G.
AU - Shafi, Q.
N1 - Funding Information:
The presently measured gauge couplings of the standard model, when extrapolated to higher energies with supersymmetry (SUSY) becoming relevant at scales ~ 100 GeV - few TeV, appear to merge together at scales around 1016 GeV \[1 \]. This certainly is a boost for ideas based on supersymmetric grand unification \[2\]w, ith SUSY SU(5) or SO(10) being the obvious candidates. However, a potential drawback for SU(5) type models is that they cannot be "embedded" in any "straightforward" superstring approach, which has led to renewed interest in gauge groups such as G = SU(3)c X SU(3)L × SU(3)R. The gauge group G not only emerges from the simplest superstring theories ¢' Supportedi n part by Department of Energy Grant No. DE-FG02-91ER40626. Present Address: Dipartimento di Fisica, Universita di Pisa and INFN, Sezione di Pisa, 1-56100 Pisa, Italy.
PY - 1994/5/5
Y1 - 1994/5/5
N2 - We explore the gauge hierarchy problem within the framework of supersymmetric SU(3)c×SU(3)L×SU(3)R with a minimal set of Higgs supermultiplets. Imposition of a suitable discrete (alternatively R) symmetry "prevents" the electroweak Higgs doublets from becoming superheavy through renormalizable couplings. A full resolution of the problem requires consideration of the non-renormalizable couplings which play an essential role. Other key differences from the minimal supersymmetric SU(5) model include the fact that the proton is stable and that an effective 5+5 supermultiplet appears around the TeV mass scale.
AB - We explore the gauge hierarchy problem within the framework of supersymmetric SU(3)c×SU(3)L×SU(3)R with a minimal set of Higgs supermultiplets. Imposition of a suitable discrete (alternatively R) symmetry "prevents" the electroweak Higgs doublets from becoming superheavy through renormalizable couplings. A full resolution of the problem requires consideration of the non-renormalizable couplings which play an essential role. Other key differences from the minimal supersymmetric SU(5) model include the fact that the proton is stable and that an effective 5+5 supermultiplet appears around the TeV mass scale.
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U2 - 10.1016/0370-2693(94)91319-6
DO - 10.1016/0370-2693(94)91319-6
M3 - Article
AN - SCOPUS:0001129676
SN - 0370-2693
VL - 326
SP - 258
EP - 263
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 - 3-4
ER -