6 papers
and in the Heavy Quark Limit
Xiao-Gang He, J. P. Ma, Chung-Yi Wu
We study and decays in the heavy quark limit using perturbative QCD. The next leading order corrections introduce substantial modifications to the naive facto…
Electroweak Model Independent Tests for SU(3) Symmetry in Hadronic B Decays
Xiao-Gang He, Jenq-Yuan Leou, Chung-Yi wu
We study effects of new physics beyond the Standard Model on SU(3) symmetry in charmless hadronic two body B decays. It is found that several equalities for some of the decay ampli…
Asymmetry Effects in Polarized Hadron Scattering
Yaw-Hwang Chen, Su-Long Nyeo, Chung-Yi Wu
We calculate the single-spin and double-spin asymmetry differential cross sections for the polarized hadron scattering up to by the helicity amplitu…
Internal W-emmission and W-exchange Contributions to {\bf B}\to {{\bf D}^{(*)} Decays
Chung-Yi Wu, Tsung-Wen Yeh, Hsiang-nan Li
We evaluate external -emission, internal -emission and -exchange contributions to nonleptonic decays based on the perturbative QCD formalism including Sudak…
Structural Aspects of the Proton in the Chiral Quark Model
Chung-Yi Wu
We calculate with chiral symmetry the parton contents of the proton based on a two-component wave function. The calculation results give significant sea-quark contents and, especia…
Spin Structure of the Proton
Chung-Yi Wu
By assuming that there is no significant intrinsic polarization of the gluon, we have computed the polarized quark contributions to the proton's spin under SU(3) flavor symmetry br…