What Precision Electroweak Physics Says About the SU(6)/Sp(6) Little Higgs

Phys. Rev. D 69 (2004) 115008

Studies precision electroweak constraints on the SU(6)/Sp(6) Little Higgs model, identifying a near-oblique limit and finding viable parameter space with top partners as light as 1 TeV and W' as light as 1.8 TeV.

Little Higgs and Custodial SU(2)

Phys. Rev. D 69 (2004) 035002

Constructs a Little Higgs model with custodial SU(2) as an approximate symmetry, based on a modification of the Minimal Moose with SO(5) global symmetries. Achieves small contributions to precision electroweak observables with a breaking scale as low as 700 GeV and accessible TeV-scale partners.