The chiral symmetry of QCD requires energy-dependent pionic strong interactions at low
energies. This constraint, however, is not fulfilled by the usual Breit-Wigner parametrization …

We study four quasi-two-body decay processes including D 0⁎(2400) as the intermediate
state in the perturbative QCD (PQCD) approach. The branching fraction predicted in this …

We study the quasi-two-body decays B→ PD 0*(2400)→ PD π with P=(π, K, η, η′) in the
perturbative QCD factorization approach. The predicted branching fractions for the …

The discovery of the ground state positive-parity charm-strange and charm-nonstrange
mesons D∗ s0 (2317), Ds1 (2460), D∗ 0 (2400) and D1 (2430) in 2003 and 2004 brought …

We study the nature of the scalar D 0* meson from the viewpoint of chiral symmetry. With the
linear representation of chiral symmetry, we construct the D π scattering amplitude satisfying …

In recent years, several measurement of the ratios R (D)= B (B→ Dτ− ντ)/B (B→ Dl− νl) and
R (D∗)= B (B→ D∗ τ− ντ)/B (B→ D∗ l− νl), where l denotes an electron or a muon, have …

The discovery of the ground state positive-parity charm-strange and charm-nonstrange
mesons D∗ s0 (2317), Ds1 (2460), D∗ 0 (2400) and D1 (2430) in 2003 and 2004 brought …

It is demonstrated that, if the lightest positive parity charm mesons are assumed to owe their
existence to non-perturbative Goldstone boson-D/D∗ scattering, various puzzles in the …