Kwei-Chou Yang

Charmless hadronic B decays involving scalar mesons: Implications on the nature of light scalar mesons

The hadronic charmless

Charmless exclusive baryonic B decays

B

Data for polarization in charmless B{yields}{phi}K*: A signal for new physics?

decays into a scalar meson and a pseudoscalar meson are studied within the framework of QCD factorization. Based on the QCD sum rule method, we have derived the leading-twist light-cone distribution amplitudes of scalar mesons and their decay constants. Although the light scalar mesons

B → J/ψ K decays in QCD factorization

{f}_{0}(980)

Nonresonant Three-body Decays of D and B Mesons

and

Hadronic charmless B decays B → AP

{a}_{0}(980)

Non-Gaussianities of single field inflation with nonminimal coupling

are widely perceived as primarily the four-quark bound states, in practice it is difficult to make quantitative predictions based on the four-quark picture for light scalars. Hence, predictions are made in the 2-quark model for the scalar mesons. The short-distance approach suffices to explain the observed large rates of

Form factors of B{sub u,d,s} decays into p-wave axial-vector mesons in the light-cone sum rule approach

{f}_{0}(980){K}^{\ensuremath{-}}

K(1)(1270)-K(1)(1400) Mixing Angle and New-Physics Effects in B ---> K(1) l+ l- Decays

and

Radiative and Semileptonic B Decays Involving the Tensor Meson K(2)*(1430) in the Standard Model and Beyond

{f}_{0}(980){\overline{K}}^{0}