My research interests are in theoretical high energy physics, astrophysics and cosmology, especially Electroweak Symmetry Breaking (EWSB), supersymmetry, unification of fundamental interactions, CP Violation, dark matter, and theories with extra dimensions. One of the most important goals of future colliders is to discover the Higgs bosons or to prove their nonexistence. In the Standard Model of electroweak interactions, the Higgs field condenses (disappears into the vacuum), spontaneously breaking the electroweak symmetry and generating masses for the elementary particles. Weak scale supersymmetry is the most compelling extension of the Standard Model to preserve the elementary nature of the Higgs bosons. In most supersymmetric models, the lightest neutralino can be a good cold dark matter candidate if R-parity is conserved. Recently, I have been investigating direct and indirect signatures of new physics in present and future experiments to pursue interesting physics of electroweak symmetry breaking, supersymmetry, CP violation and astrophysics.
"Discovering Colorons at the Early Stage LHC,"D.A. Dicus, C. Kao, S. Nandi, J. Sayre,Phys. Rev. D,83, 091702, (2011)ADS: 2011PhRvD..83i1702D
"SUSY QCD Corrections to Higgs Pair Production from Bottom Quark Fusion,"S. Dawson, C. Kao and Y. Wang,Phys. Rev. D,77, 113005, (2008)ADS: 2008PhRvD..77k3005D
"Discovering the Higgs Bosons of Minimal Supersymmetry with Mousons and a Bottom Quark,"S. Dawson, D. Dicus, C. Kao and R. Malhotra,Phys. Rev. Lett.,92, 241801, (2004)ADS: 2004PhRvL..92x1801D
"Implications of new CMB data for nutralino dark matter,"V. Barger and C. Kao,Phys. Lett. B,518, 117, (2001)ADS: 2001PhLB..518..117B
"Astrophysical Constraints on Large Extra Dimensions,"V. Barger, T. Han, C. Kao and R. J. Zhang,Phys. Lett. B,461, 34, (1999)ADS: 1999PhLB..461...34B
"A Two Higgs Doublet Model for the Top Quark,"A. Das and C. Kao,Phys. Lett. B,372, 106, (1996)ADS: 1996PhLB..372..106D