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Dynamically Generated Open and Hidden Charm Meson Systems
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We will study open and hidden charm scalar meson resonances within two different models. The first one is a direct application of a chiral Lagrangian already used to study flavor symmetry breaking in Skyrme models. In another approach to the problem a SU(4) symmetric Lagrangian is built and the symmetry is broken down to SU(3) by identifying currents where heavy mesons are exchanged and suppressing those. Unitarization in couple channels leads to dynamical generation of resonances in both models, in particular a new hidden charm resonance with mass 3.7 GeV is predicted. The small differences between these models and with previous works will be discussed.
Forward citations
Cited by 14 Pith papers
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Revealing the $D_0^*(2300)$ two-pole structure from lattice data and the SU(3) limit
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...
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$D_1$ and $D_2$ resonances in coupled-channel scattering amplitudes from lattice QCD
Lattice QCD at m_π≈391 MeV finds D1 bound state below D*π threshold strongly coupled in S-wave and D1' resonance in elastic D*π region for I=1/2 charmed channels.
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The $D_{s1}(2460)$ and other open-charm $1^+$ states in relativistic chiral effective field theory
Relativistic U(3) chiral EFT at NLO yields scattering lengths that match lattice data and identifies D_s1(2460) as an SU(3) triplet bound-state pole and D1(2430) as a triplet-sextet pole pair, none of which are conven...
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The $B^{+(0)} \to \bar D^{0(-)} D^{*}_{s0}(2317)^+$ decays and the molecular structure of $D^*_{s0}(2317)$
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).
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Probing the structure of the $D_{s 0}^*(2317)$ and $X(3872)$ states through correlation functions
Femtoscopic correlation functions for D0K+ and D0Dbar*0 pairs are predicted to be sensitive to the molecular versus bare-state composition of D_s0*(2317) and X(3872).
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Scalar resonance contributions in the $D_{s1}(2460)^{+} \rightarrow D_{s}^{+}\pi^{+}\pi^{-}$ reaction
In D_s1(2460)+ -> D_s+ pi+ pi-, a chiral unitary coupled-channel model reproduces the LHCb mass distributions and generates T_cbar-s and f0(500) as hadronic molecules.
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Roles of $f_{0}(500)$ and $f_{0}(980)$ in the $D_{(s)}^{+}\rightarrow\pi^{+}\pi^{+}\pi^{-}$ decays
A quark-level hadronization plus meson rescattering model reproduces why D_s -> pi+ pi+ pi- contains only the f0(980) resonance while D+ -> pi+ pi+ pi- contains both f0(500) and f0(980).
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Determination of the binding and $DK$ probability of the $D^{*}_{s0}(2317)$ from the $(\bar{D}\bar K)^-$ mass distributions in $\Lambda_{b}\to \Lambda_{c} (\bar{D}\bar K)^-$ decays
A simulation-based feasibility study shows that near-threshold Dbar Kbar mass distributions from Lambda_b decays could determine the D*_s0(2317) mass to about 4 MeV and its DK molecular probability to about 11%.
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The dynamically generated $h_1$ state by the $K^*\bar{K}^*$ interaction and its $K_1(1270)\bar{K}$ and $b_1(1235)\pi$ decays
The dynamically generated h1(1790) K*Kbar* molecule is predicted to decay into K1(1270)Kbar and b1(1235)pi with partial widths of about 0.5 to several MeV, plus stable width ratios R1≈0.3 and R2≈0.53.
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What can we learn from the radiative decays of the $D_{s1}(2460)$ meson?
Measuring the ratio of radiative decay branching fractions from Ds1(2460) can probe the nature of Ds0*(2317) and Ds1(2460) mesons.
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Final state interaction in the $\Lambda_b\to D^+D^- \Lambda,~D^0D_s^- p,~D_s^+D_s^-\Lambda$ reactions
Threshold enhancements in the Ds-p, Ds-Lambda, and related mass distributions of Lambda_b decays are predicted from final state interactions with molecular exotic states.
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Study of the exotic three-body $N D^* \bar{K}^*$ system
A fixed-center Faddeev calculation predicts five N D* K̄* bound states with spin 1/2, 3/2, 5/2 and binding energies of 10 to 30 MeV.
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Radiative decays of hadronic molecules: From confusion to inspiration
Radiative decays of hadronic molecules require careful treatment of scale hierarchies to resolve interpretive confusions, as demonstrated by reviewing decay types and instructive examples.
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Production of exotic hadrons in $pp$ and nuclear collisions
A review of exotic-hadron production in pp, pbar-p, and nuclear collisions, arguing that such measurements can discriminate between hadronic-molecule and compact-tetraquark interpretations of states like the X(3872).
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