130 citations · 964 across the 49 of their papers we have counts for
8 papers · 1 filter
On A New Class of Models for Soft CP Violation
David Bowser-Chao, Darwin Chang, Wai-Yee Keung
We elaborate on a new class of models proposed recently by us and compare with another class proposed by Georgi and Glashow(GG). The models can be roughly classified as the righted…
Vector Quark Model and B to X_s gamma Decay
Chia-Hung V. Chang, Darwin Chang, Wai-Yee Keung
We study the meson radiative decay in the vector quark model. Deviation from the Standard Model arises from the non-unitarity of the charged current KM matrix and…
Alternative Interpretation of the Tevatron Top Events
Darwin Chang, We-Fu Chang, Ernest Ma
We propose an alternative interpretation of the top events discovered at the Tevatron in 1995. Given that the charge of the quark jet cannot be measured for the whole sample wi…
CP Violation in the Width Difference of the Scalar Electron Decay due to Complex Gaugino Masses
Fred J. Browning, Darwin Chang, Wai-Yee Keung
We calculate the width difference of the scalar electron decay, in the softly broken supersymmetrized standard model.…
Shifting with
Darwin Chang, Ernest Ma
Precision measurements at the resonance agree well with the standard model. However, there is still a hint of a discrepancy, not so much in by itself (which has received…
PQCD study of the and controversy in inclusive decays
Chia-Hung V. Chang, Darwin Chang, We-Fu Chang +2
We calculate the semileptonic branching ratio and the charm counting of inclusive meson decays using the perturbative QCD formalism. For the nonleptonic decays, we employ the m…