14 papers
k_T factorization of exclusive B decays
Hsiang-nan Li
I compare collinear and factorization theorems in perturbative QCD, and discuss their application to exclusive meson decays. Especially, I concentrate on the recently mea…
source in inclusive b-hadron decays
Huei-Shih Liao, Hsiang-nan Li
We show that threshold resummation of the end-point logarithms in inclusive -hadron decays leads to a Sudakov factor, which introduces power corrections through infrared…
PQCD factorizaiton of two-body B decays
Hsiang-nan Li
I review the known approaches to two-body nonleptonic meson decays, including factorization assumption, modified factorization assumption, QCD factorization, and perturbative Q…
Polarized decay in perturbative QCD
Hsien-Hung Shih, Shih-Chang Lee, Hsiang-nan Li
We study the polarized baryon semileptonic decay using perturbative QCD factorization theorem. In this approach heavy baryon transition form factors are…
Perturbative QCD analysis of b-hadron lifetimes
Hsiang-nan Li
We develop perturbative QCD factorization theorems for inclusive b-hadron decays, in which radiative corrections characterized by the hadronic scale, the b-hadron mass, and the W b…
PQCD analysis of exclusive B meson decays
Hsiang-nan Li
The perturbative QCD formalism for exclusive heavy meson decays, especially the three-scale factorization theorem for nonleptonic modes is reviewed and compared to the conventional…