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A Comprehensive Four-Quark Interpretation of D_s(2317), D_s(2457) and D_s(2632)
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The recently observed new member of the charm-strange family D_s(2632) which has a surprisingly narrow width is challenging our theory. D_s(2317) and D_s(2457) which were observed earlier have similar behaviors and receive various theoretical explanations. Some authors use the heavy hadron chiral effective theory to evaluate heavy-light quark systems and obtain a reasonable evaluation on the masses of D_s(2317) and D_s(2457). An alternative picture is to interpret them as four-quark or molecular states. In this work, we are following the later and propose a unitive description for all the three new members D_s(2632), D_s(2317) and D_s(2457) and at least, so far our picture is consistent with the data.
Forward citations
Cited by 8 Pith papers
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Prediction of $QQqq\bar{s}$ molecular pentaquarks within the extended local hidden gauge approach
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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 neutron-D_{s1}(2460) and neutron-D_{s1}(2536) systems are predicted to have bound states, with correlation functions sensitive to the molecular structure of the D_{s1} mesons.
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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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Strong decays of the possible $D^{*}K$ and $\bar{D}^{*}K$ molecules
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A Phenomenological Study of Semileptonic $B^+$ and $B_s^0$ Decays into Axial-Vector Mesons $\big(D_1(2420),\, D_1^\prime(2430),\, D_{s1}(2460),\, \text{and } D_{s1}^\prime(2536)\big)$ within the Standard Model
Semileptonic B to axial-vector meson decays are studied as functions of the mixing angle θ_D1 using covariant light-front quark model form factors, producing predictions for branching ratios, forward-backward asymmetr...
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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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Unquenched Charmonium and Beyond
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