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A Quirky Little Higgs Model
Haiying Cai, Hsin-Chia Cheng, John Terning
We consider an extra dimensional model where the quadratically divergent top loop contribution to the Higgs mass is cancelled by an uncolored heavy "top quirk" charged under a diff…
Minimal Kinematic Constraints and MT2
Hsin-Chia Cheng, Zhenyu Han
We clarify the relation between the variable MT2 and the method of kinematic constraints, both of which can be used for mass determination in events with two missing (dark matter)…
A Spin-1 Top Quark Superpartner
Haiying Cai, Hsin-Chia Cheng, John Terning
We construct a supersymmetric model where the left-handed top and bottom quarks are mainly the gauginos of a vector supermultiplet and hence their superpartners are spin-1. The rig…
Accurate Mass Determinations in Decay Chains with Missing Energy
Hsin-Chia Cheng, Dalit Engelhardt, John F. Gunion +2
Many beyond the Standard Model theories include a stable dark matter candidate that yields missing / invisible energy in collider detectors. If observed at the Large Hadron Collide…