Twin SUSY

Details Twin SUSY Twin SUSY

2006-04-07

arxiv.org/abs/hep-ph/0604066v3

Phys.Rev. D74 (2006) 035003

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages; v2: references and Lawrence added

Scientific paper

10.1103/PhysRevD.74.035003

We construct an extension of the MSSM in which superpartners can naturally be heavier than the electroweak scale. This ``little hierarchy'' of scales is stable because the Higgs arises as a pseudo-Nambu-Goldstone boson in the breaking of an accidental SU(4) symmetry of the Higgs sector. Supersymmetry and the global symmetry combine to forbid logarithmically divergent one-loop contributions to the Higgs mass. The accidental symmetry follows from a simple ``twin'' parity which exchanges the SU(2) sectors in the SU(3)_C x SU(2)_L x SU(2)_R x U(1)_X gauge group.

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