Academia Sinica

output

19922026

most citedObservation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

10.9k citations

Showing 1998 · hep-phShow all

14 papers · 2 filters

hep-ph1998★ 6 cited

Nonperturbative Determination of Heavy Meson Bound States

Chi-Yee Cheung, Wei-Min Zhang

In this paper we obtain a heavy meson bound state equation from the heavy quark equation of motion in heavy quark effective theory (HQET) and the heavy meson effective field theory…

hep-ph1998★ 59 cited

Updated Analysis of a_1 and a_2 in Hadronic Two-body Decays of B Mesons

Hai-Yang Cheng, Kwei-Chou Yang

Using the recent experimental data of $B \to D^{(*)} (π, ρ)$ , $B \to D^{(*)} D_{s}^{(*)}$ , $B \to J / ψ K^{(*)}$ and various model calculations on form factors, we re-analyze the effective c…

hep-ph1998★ 27 cited

The $Λ_{b} \to pl ν ˉ$ decay in perturbative QCD

Hsien-Hung Shih, Shih-Chang Lee, Hsiang-nan Li

We develop perturbative QCD factorization theorems for the exclusive semileptonic heavy baryon decay $Λ_{b} \to pl ν ˉ$ , in which the relevant hadronic form factor is expressed as…

hep-ph1998★ 2 cited

Perturbative QCD analysis of $B (B \to X l ν ˉ)$ , charm yield $< n_{c} >$ in B decay, and $τ (Λ_{b}) / τ (B_{d})$

We-Fu Chang, Hsiang-nan Li, Hoi-Lai Yu

We apply perturbative QCD factorization theorems to inclusive heavy hadron decays, and obtain simultaneously a low semileptonic branching ratio $B (B \to X l ν ˉ) = 10.16$ , the averag…

hep-ph1998★ 14 cited

Prospects for Direct CP Violaton in Exclusive and Inclusive Charmless B decays

Xiao-Gang He, Wei-Shu Hou, Kwei-Chou Yang

Within the Standard Model, CP rate asymmetries for $B \to K^{-} π^{+, 0}$ could reach 10%. With strong final state phases, they could go up to 20--30%, even for $K ˉ^{0} π^{-}$ mode which…

hep-ph1998★ 9 cited

Variational Estimation of the Wave Function at Origin for Heavy Quarkonium

Yi-Bing Ding, Xue-Qian Li, Peng-Nian Shen

The wave function at the origin (WFO) is an important quantity in studying many physical problems concerning heavy quarkonia. However, when one used the variational method with few…