Matter Unification in Warped Supersymmetric SO(10)

Journal Article · Tue Mar 16 04:00:00 EST 2004 · Nuclear Physics B

DOI:https://doi.org/10.1016/j.nuclphysb.2004.07.031· OSTI ID:964300

Nomura, Yasunori; Tucker-Smith, David

We construct models of warped unification with a bulk SO(10) gauge symmetry and boundary conditions that preserve the SU(4)_C x SU(2)_L x SU(2)_R Pati-Salam gauge group (422). In the dual 4D description, these models are 422 gauge theories in which the apparent unification of gauge couplings in the minimal supersymmetric standard model is explained as a consequence of strong coupling in the ultraviolet. The weakness of the gauge couplings at low energies is ensured in this 4D picture by asymptotically non-free contributions from the conformal sector, which are universal due to an approximate SO(10) global symmetry. The 422 gauge symmetry is broken to the standard model group by a simple set of Higgs fields. An advantage of this setup relative to SU(5) models of warped unification is that matter is automatically required to fill out representations of 422, providing an elegant understanding of the quantum numbers of the standard-model quarks and leptons. The models also naturally incorporate the see-saw mechanism for neutrino masses and bottom-tau unification. Finally, they predict a rich spectrum of exotic particles near the TeV scale, including states with different quantum numbers than those that appear in SU(5) models.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Physics Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 964300
• Report Number(s): LBNL-54698
• Journal Information: Nuclear Physics B, Journal Name: Nuclear Physics B
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
grand unified theory
SO(10)
supersymmetry
symmetry breaking