Phys. Rev. Lett. 113 (2014) 171301
Introduces the SIMP paradigm in which the thermal relic abundance is set by 3-to-2 self-annihilations in a hidden sector that remains in kinetic equilibrium with the Standard Model. Predicts light (MeV-GeV) dark matter with sizable self-interactions.
J. Phys. G 39 (2012) 105005
A systematic catalog of simplified models for new-physics searches at the LHC, defining minimal effective Lagrangians with few new particles whose masses and cross-sections map directly to observable quantities. Output of the SLAC workshop on Topologies for Early LHC Searches.
Adv. High Energy Phys. 2011, 859762
Computes model-independent limits on new Abelian vector bosons kinetically mixed with Standard Model hypercharge, using data from e+e- experiments across the 1 GeV to 1 TeV mass range. Bounds the kinetic mixing parameter to epsilon < 0.03 for most masses studied.
Int. J. Mod. Phys. A 20 (2005) 7412-7422
Studies the potential of electron-electron collisions to probe the spectrum and couplings of the Littlest Higgs model.
JHEP 0606:034 (2006)
Shows that gauge extensions of the MSSM with non-decoupling D-terms can raise the Higgs boson mass while maintaining gauge coupling unification, with unification constraining the Higgs mass to below roughly 150 GeV and predicting new heavy gauge bosons at a few TeV.
Phys. Rev. D 70:117703 (2004)
Computes one-loop predictions for split supersymmetry, finding the Higgs mass in the range 130-170 GeV for scalar masses above 10^6 GeV, and showing that 1% measurements of gaugino couplings could determine the SUSY breaking scale to within an order of magnitude.
Phys. Rev. D 69:065022 (2004)
Investigates the scalar dark matter candidate in the Little Higgs theory-space model, performing a thermal relic density calculation and finding two viable mass regions — around 100 GeV and above 500 GeV — where the dark matter is an admixture of SU(2) triplet and singlet.
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.
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.
JHEP 0208:021 (2002)
Introduces the minimal theory-space construction for a Little Higgs model, where the Higgs is a pseudo-Goldstone boson protected from quadratic divergences by collective symmetry breaking. Predicts new TeV-scale partners for the top quark, gauge bosons, and scalars, with the entire Higgs potential generated by the top Yukawa coupling.
JHEP 0208:020 (2002)
Works out the collider phenomenology and dark matter implications of the Little Higgs mechanism, predicting light Higgs doublets accompanied by new weak triplet and singlet scalars, heavy TeV-scale particles with distinctive decay signatures, and a new WIMP dark matter candidate from a discrete geometric symmetry.