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arxiv 1412.1706 v3 pith:SMR2JHQ5 submitted 2014-12-04 hep-lat hep-ph

Reanalysis of lattice QCD spectra leading to the D_(s0)^*(2317) and D_(s1)^*(2460)

classification hep-lat hep-ph
keywords bounddeterminelatticereanalysisstateamountbasiscontains
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We perform a reanalysis of the energy levels obtained in a recent lattice QCD simulation, from where the existence of bound states of $KD$ and $KD^*$ are induced and identified with the narrow $D_{s0}^*(2317)$ and $D_{s1}^*(2460)$ resonances. The reanalysis is done in terms of an auxiliary potential, employing a single-channel basis $KD^{(*)}$, and a two-channel basis $KD^{(*)}, \eta D_s^{(*)}$. By means of an extended L\"uscher method we determine poles of the continuum $t$-matrix, bound by about 40 MeV with respect to the $KD$ and $KD^*$ thresholds, which we identify with the $D_{s0}^*(2317)$ and $D_{s1}^*(2460)$ resonances. Using a sum rule that reformulates Weinberg compositeness condition we can determine that the state $D_{s0}^*(2317)$ contains a $KD$ component in an amount of about 70%, while the state $D_{s1}^*(2460)$ contains a similar amount of $KD^*$. We argue that the present lattice simulation results do not still allow us to determine which are the missing channels in the bound state wave functions and we discuss the necessary information that can lead to answer this question.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  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

    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. $KX(3872)$ interaction and correlation function

    hep-ph 2026-07 conditional novelty 5.0

    A unitarized fixed-center approximation predicts a narrow KX(3872) bound state 50 MeV below threshold and a characteristic femtoscopic correlation function.

  3. Correlation function and bound state from the $K D_{s0}^*(2317)$ interaction

    hep-ph 2026-04 unverdicted novelty 5.0

    The K D_s0*(2317) system develops a narrow resonance 40 MeV below threshold under the fixed-center molecular assumption, producing a characteristic correlation function for strong attraction.