Wei-Zhen Deng

D_ sJ (2860) and D_ sJ (2715)

Recently the Babar Collaboration reported a new cs̄ state, DsJ(2860), and the Belle Collaboration observed DsJ(2715). We investigate the strong decays of the excited cs̄ states using the 3P0 model. After comparing the theoretical decay widths and decay patterns with the available experimental data, we are inclined to conclude that: (1) DsJ(2715) is probably the 1-(13D1) cs̄ state, although the 1-(23S1) assignment is not completely excluded; (2) DsJ(2860) seems unlikely to be the 1-(23S1) and 1-(13D1) candidate; (3) to consider DsJ(2860) either as a 0+(23P0) or as a 3-(13D3) cs̄ state is consistent with the experimental data; (4) the experimental search of DsJ(2860) in the channels Dsη, DK*, D*K and Ds*η will be crucial to distinguish the above two possibilities.

DsJ(2860) and DsJ(2715)

Recently the Babar Collaboration reported a new cs̄ state, DsJ(2860), and the Belle Collaboration observed DsJ(2715). We investigate the strong decays of the excited cs̄ states using the 3P0 model. After comparing the theoretical decay widths and decay patterns with the available experimental data, we are inclined to conclude that: (1) DsJ(2715) is probably the 1-(13D1) cs̄ state, although the 1-(23S1) assignment is not completely excluded; (2) DsJ(2860) seems unlikely to be the 1-(23S1) and 1-(13D1) candidate; (3) to consider DsJ(2860) either as a 0+(23P0) or as a 3-(13D3) cs̄ state is consistent with the experimental data; (4) the experimental search of DsJ(2860) in the channels Dsη, DK*, D*K and Ds*η will be crucial to distinguish the above two possibilities.

Strong decays of charmed baryons

There has been important experimental progress in the sector of heavy baryons in the past several years. We study the strong decays of the

Pionic decays of D s j ( 2317 ) , D s j ( 2460 ) and B s j ( 5718 ) , B s j ( 5765 )

S

Magnetic moment of the Theta+ pentaquark state

-wave,

The [1, 2] Padé amplitudes for ππ scatterings in chiral perturbation theory

P

Magnetic moments and electromagnetic form factors of the decuplet baryons in chiral perturbation theory

-wave,

Radiative decays of decuplet baryons, A(1405) and A(1520) hyperons in the chiral quark model

D

Probing the XYZ states through radiative decays

-wave, and radially excited charmed baryons using the

Dynamics study of Z+(4430) and X(3872) in molecular picture

^{3}P_{0}