305 citations · 4.5k across the 110 of their papers we have counts for
4 papers · 2 filters
CP asymmetry in the Higgs decay into the top pair due to the stop mixing
Fred Browning, Darwin Chang, Wai-Yee Keung
We investigate a potentially large CP violating asymmetry in the decay of a neutral scalar or pseudoscalar Higgs boson into the top-anti-top pair. The source of the CP nonconservat…
Large Two-Loop Contributions to g-2 from a Generic Pseudoscalar Boson
Darwin Chang, We-Fu Chang, Chung-Hsien Chou +1
We calculate the dominant contributions to the muon at the two-loop level due to a generic pseudoscalar boson that may exist in any exotic Higgs sector in most extensions of…
Large CP violation in radiative B decays in supersymmetry without R-parity
Gautam Bhattacharyya, Darwin Chang, Chung-Hsien Chou +1
We demonstrate that the R-parity breaking interactions within their current experimental upper bounds can give rise to large mixing-induced CP asymmetry in exclusive radiative B de…
The Neutron Electric Dipole Moment and CP-violating Couplings in the Supersymmetric Standard Model without R-parity
Darwin Chang, We-Fu Chang, Mariana Frank +1
We analyze the neutron electric dipole moment (EDM) in the Minimal Supersymmetric Model with explicit R-parity violating terms. The leading contribution to the EDM occurs at the 2-…