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Strong and radiative decays of the Ds0*(2317) meson in the DK-molecule picture

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arxiv 0705.0254 v3 pith:K5IWYPWA submitted 2007-05-02 hep-ph

Amand Faessler , Thomas Gutsche , Valery E. Lyubovitskij , Yong-Liang Ma This is my paper · ORCID
classification hep-ph
keywords decaymesonstrongtransitiondecaysdirecteta-pi0mesons
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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.

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Forward citations

Cited by 11 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 202 citations worldwide. Full citation record

  1. Revealing the $D_0^*(2300)$ two-pole structure from lattice data and the SU(3) limit

    hep-ph 2026-06 unverdicted novelty 7.0 of 10

    Lattice data analysis with UChPT finds two I=1/2 poles at physical point with positions 2094-i111 MeV and 2463-i108 MeV; lower pole splits like the sigma on ms=const trajectory and links to 3-bar, higher pole links to...

  2. Properties of the $D_{s0}^*(2317)^\pm$ in hot and dense nuclear matter

    hep-ph 2026-08 conditional novelty 6.0 of 10

    A coupled-channel molecular model predicts that in nuclear matter the D_s0*(2317)+ shifts downward and broadens with density, while temperature narrows it and broadens its antiparticle, yielding a possible structural test.

  3. The $B^{+(0)} \to \bar D^{0(-)} D^{*}_{s0}(2317)^+$ decays and the molecular structure of $D^*_{s0}(2317)$

    hep-ph 2025-12 conditional novelty 6.0 of 10

    Using B→D D K data and a two-parameter model, the authors derive B→D D*_s0(2317) branching fractions that agree with experiment within errors, supporting a sizable DK molecular component of D*_s0(2317).

  4. Implication of the existence of $J^{PC}=0^{--}$ $\bar{D}_sDK$ bound state on nature of $D_{s0}^*(2317)$ and new configuration of exotic state

    hep-ph 2025-01 conditional novelty 6.0 of 10

    A J^PC = 0^-- anti-D_s D K three-meson bound state, X(4310), is predicted and shown to be searchable in B+ -> D*± D∓ K+ decays at LHCb.

  5. Compact $cs\bar{s}\bar{s}$ Tetraquarks in the Charm--Strange Sector: Mass Spectra, Rearrangement Decays and Regge Trajectories with $D_s$ Threshold Inputs

    hep-ph 2026-05 unverdicted novelty 5.0 of 10

    The authors compute mass spectra, rearrangement decays, and Regge trajectories for cs s-bar s-bar tetraquarks modeled as axial [cs][s-bar s-bar] systems in a Cornell potential framework with Ds threshold inputs.

  6. What can we learn from the radiative decays of the $D_{s1}(2460)$ meson?

    hep-ph 2025-12 unverdicted novelty 5.0 of 10

    Measuring the ratio of radiative decay branching fractions from Ds1(2460) can probe the nature of Ds0*(2317) and Ds1(2460) mesons.

  7. Determining the width of $D_{s0}^{*}(2317)$ by using $T_{c\bar{s}0}^{a}(2327)$ in a molecular frame

    hep-ph 2025-07 conditional novelty 5.0 of 10

    Calibrating the DK molecular model on the newly measured Tcs0(2327) width predicts the Ds0*(2317) width to be 63 to 209 keV.

  8. Strong decays of the possible $D^{*}K$ and $\bar{D}^{*}K$ molecules

    hep-ph 2026-08 conditional novelty 4.0 of 10

    An effective-Lagrangian calculation predicts the I=1 D*K molecule T^a_cs1(2470) has a D_s*pi0 width of 13 to 196 MeV, about 10^3 times the predicted D_s1(2460) molecular width.

  9. Strong decays of the latest LHCb pentaquark candidates in hadronic molecule pictures

    hep-ph 2019-08 conditional novelty 4.0 of 10

    Treating Pc(4312), Pc(4440) and Pc(4457) as S-wave hadronic molecules, this paper computes decay widths and argues that spins 1/2^-, 1/2^- and 3/2^- respectively fit the measured widths.

  10. Radiative decays of hadronic molecules: From confusion to inspiration

    hep-ph 2026-03 unverdicted novelty 3.0 of 10

    Radiative decays of hadronic molecules require careful treatment of scale hierarchies to resolve interpretive confusions, as demonstrated by reviewing decay types and instructive examples.

  11. Unquenched Charmonium and Beyond

    hep-ph 2026-02 conditional novelty 2.0 of 10

    This Lanzhou-group review argues that coupled-channel (unquenched) effects, not exotic constituents, are the common thread explaining charmonium anomalies from the rho-pi puzzle to the Y-problem states.

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