Strong and radiative decays of the D(s0)*(2317) meson in the DK-molecule picture
May, 2007
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Abstract: (arXiv)
We consider a possible interpretation of the new charm-strange meson Ds0*(2317) as a hadronic molecule - a bound state of D and K mesons. Using an effective Lagrangian approach we calculate the strong Ds0* to Ds pi0 and radiative Ds0* to Ds* gamma decays. A new impact related to the DK molecular structure of the Ds0*(2317) meson is that the presence of u(d) quarks in the D and K mesons gives rise to a direct strong isospin-violating transition Ds0* to Ds pi0 in addition to the decay mechanism induced by eta-pi0 mixing considered previously. We show that the direct transition dominates over the eta-pi0 mixing transition in the Ds0* to Ds pi0 decay. Our results for the partial decay widths are consistent with previous calculations.- 13.25.Ft
- 14.65.Dw
- 14.40.Lb
- 13.40.Hq
- charmed meson: strange meson
- D/s0*(2317): hadronic decay
- D/s0*(2317): radiative decay
- meson: molecule
- bound state: (D K)
- isospin: violation
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