In this paper, we present a review of recent works on weak decay of heavy mesons and
baryons with two mesons, or a meson and a baryon, interacting strongly in the final state …

The strange quark plays a unique role in QCD, reflecting its intermediate mass between the
light and heavy quarks. In recent years, remarkable progress has been made in the …

A bstract We perform a reanalysis of the energy levels obtained in a recent lattice QCD
simulation, from where the existence of bound states of KD and KD∗ are induced and …

The structure of the hadron resonances attracts much attention, in association with the
recent observations of various exotic hadrons which do not fit well in the conventional …

We develop a theoretical framework to investigate the two-body composite structure of a
resonance as well as a bound state from its wave function. For this purpose, we introduce …

We apply an extension of the Weinberg compositeness condition on partial waves of L= 1
and resonant states to determine the weight of the meson-baryon component in the Δ (1232) …

The compositeness of weakly bound states is discussed using the effective field theory from
the viewpoint of the low-energy universality. We introduce a model with coupling of the …

Approximate heavy-quark spin and flavor symmetry and chiral symmetry play an important
role in our understanding of the nonperturbative regime of strong interactions. In this work …

We present a lattice-QCD determination of the elastic isospin-1/2 S-wave and P-wave K π
scattering amplitudes as a function of the center-of-mass energy using Lüscher's method …

We investigate the characteristics of σ, f 0 (980), and a 0 (980) with the formalism of chiral
unitary approach. With the dynamical generation of them, we make a further study of their …