Strong and radiative decays of the D(s0)*(2317) meson in the DK-molecule picture
By A. Faessler, T. Gutsche, V. Lyubovitskij, Yong-Liang Ma. 2007
147 citations recorded by the source corpus.
We consider a possible interpretation of the new charm-strange meson D* s0 (2317) as a hadronic molecule-a bound state of D and K mesons. Using an effective Lagrangian approach, we calculate the strong D* s0 → D s π 0 and radiative D* s0 → D* s γ decays. A new impact related to the DK molecular structure of the D* s0 (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 D* s0 → D s π 0 in addition to the decay mechanism induced by η - π 0 mixing considered previously. We show that the direct transition dominates over the 17 - π 0 mixing transition in the D* s0 → D s π 0 decay. Our results for the partial decay widths are consistent with previous calculations.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/ce17cd2500ac5c4e06c76cda98a92cc8e94f6eb2
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In Nuclear and High Energy Physics
Citations in the corpus
- Exotic Hadrons from Heavy Ion Collisions (2017, background): “There have thus been extensive discussions on the Ds0(2317), such as a cs̄ state [112, 113, 114, 115, 116], two-meson molecular state [117, 118, 119, 120, 121, 122], D-K mixing [123], tetraquark state [124, 125, 126, 127], or a mixture of two-meson and tetraquark states [128].”
- Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts (2007, background): “The molecular picture is supported by calculations of strong D∗ s0 to Ds * 0 and radiative D∗ s0 to D ∗ s - decays [865] and the leptonic decay constants fD∗ s0 and fDs1 [866].”
- Hadronic molecules (2017, background): “(16) is nothing but the one channel version of the well-known Flatté parametrization (Flatté, 13 Note that in some works a model for the form factor f(k) is employed (Faessler et al., 2007).”