TY - JOUR
T1 - Naturally light Higgs doublet in the spinor representation of SUSY SO(10)
AU - Dvali, Gia
AU - Pokorski, Stefan
N1 - Funding Information:
S.P. was partially supportedb y theP olishcommittee for Scientific Research and by the EU grant Plavour-dynamics.
PY - 1996/6/27
Y1 - 1996/6/27
N2 - Within the supersymmetric SO(10) GUT we explore the possibility of the light Higgs doublet being a member of the 16-dimensional spinorial representation. This fact is ultimately related with the assumption that the light matter (at least partially) resides in some of the tensor representations as well. Several interesting features emerge. First, provided that the same 16-plet is responsible for the breaking SO(10) → SU(5), the heaviness of the top can automatically follow from the field content at MGUT, without need of any flavour symmetries. Secondly, the doublet-triplet splitting problem receives a new natural solution. In addition, a dimension = 5 (Higgsino mediated) proton decay can be naturally suppressed. We construct explicit SO(10) models with the above properties, with most general superpotentials under the symmetries.
AB - Within the supersymmetric SO(10) GUT we explore the possibility of the light Higgs doublet being a member of the 16-dimensional spinorial representation. This fact is ultimately related with the assumption that the light matter (at least partially) resides in some of the tensor representations as well. Several interesting features emerge. First, provided that the same 16-plet is responsible for the breaking SO(10) → SU(5), the heaviness of the top can automatically follow from the field content at MGUT, without need of any flavour symmetries. Secondly, the doublet-triplet splitting problem receives a new natural solution. In addition, a dimension = 5 (Higgsino mediated) proton decay can be naturally suppressed. We construct explicit SO(10) models with the above properties, with most general superpotentials under the symmetries.
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U2 - 10.1016/0370-2693(96)00357-7
DO - 10.1016/0370-2693(96)00357-7
M3 - Article
AN - SCOPUS:0041537742
SN - 0370-2693
VL - 379
SP - 126
EP - 134
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 - 1-4
ER -