305 citations · 305 across the 2 of their papers we have counts for
9 papers
New two-loop contribution to electric dipole moment in supersymmetric theories
Darwin Chang, Wai-Yee Keung, Apostolos Pilaftsis
We calculate a new type of two-loop contributions to the electric dipole moments of the electron and neutron in supersymmetric theories. The new contributions are originated from t…
The Okubo relation for the baryon magnetic moments and chiral perturbation theory
J. W. Bos, D. Chang, S. C. Lee +1
We analyze the Okubo SU(3) relation among the hyperon magnetic moments in the usual scheme of chiral perturbation theory (ChPT). We classify the one-loop diagrams, including those…
Solutions to the R_b, R_c and alpha_s puzzles by Vector Fermions
Chia-Hung V. Chang, Darwin Chang, Wai-Yee Keung
We propose two minimal extensions of Standard Model, both of which can easily accommodate the recent puzzling observations about the excess in , the deficit in and the d…
A Scheme for radiative CP violation
Darwin Chang, W. -Y. Keung
We present a simple model in which CP symmetry is spontaneously broken only after the radiative corrections are taken into account. The model includes two Higgs-boson doublets and…
CP violation in the cubic coupling of neutral gauge bosons
Darwin Chang, Wai-Yee Keung, Palash Pal
We investigate the CP violating form factor of the ZZZZZγZ^0$ bosons. Useful observables in azimuthal distributions are constructed to…
CP Violating Observables in
Darwin Chang, Wai-Yee Keung, Ivan Phillips
We consider various integrated lepton charge-energy asymmetries and azimuthal asymmetries as tests of CP violation in the process . These asymmetries are sensiti…