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Zhao, Lu; Ma, Li; Zhu, Shi-Lin

doi:10.1103/physrevd.89.094026

Cited by 64 publications

(39 citation statements)

References 60 publications

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“…The authors of Refs. [205,243,467] noticed that it is not so easy to accommodate Z c (3900) as an isovector DD * molecular bound state, which is supported by several Lattice studies [468,469,470,471]. Prelovsek and Leskovec searched for the Z c (3900) on the lattice in the channel with J PC = 1 +− and I = 1 without success [468].…”

Section: Other Molecular Models On the Z C (3900) And Z C (4025)mentioning

confidence: 97%

“…The proximity of their masses to the thresholds inspired molecular explanations of these structures [196,215,216,202,217,218,219,220,221,222,223,224,225,203,226,200,227,228,229,230,231,232,233,234,235,236,237,238,239]. With the refinement of the meson exchange model, many subtle aspects of this framework were investigated, such as the S-D wave mixing effect [185,197], coupled-channel effect [240,241,242], and recoil correction [243,244].…”

Section: The Meson Exchange Modelmentioning

confidence: 99%

“…In Ref. [243], Zhao, Ma, and Zhu considered the spin-orbit force and recoil corrections in the DD * interaction in the OBE model. They found two isoscalar DD * molecular states with J PC = 1 ++ and 1 +− , the first of which corresponds to the X(3872).…”

Section: Other Molecular Models On the Z C (3900) And Z C (4025)mentioning

confidence: 99%

“…In a recent work [243], Zhao, Ma, and Zhu further studied the DD * system in the framework of the OBE model. They examined the spin-orbit force correction up to O(1/M) and the recoil correction up to O(1/M 2 ), and found that the former one is important for the very loosely bound state.…”

Section: Molecular Schemementioning

confidence: 99%

“…Their result suggested that there exists an isoscalar molecular state in the DD * system with J PC = 1 ++ . Their result also suggested that the recoil correction may be larger than the binding energy of the X(3872), which may partly force the X(3872) to become a very shallow bound state [243].…”

Section: Molecular Schemementioning

confidence: 99%

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The hidden-charm pentaquark and tetraquark states

et al. 2016

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In the past decade many charmonium-like states were observed experimentally. Especially those charged charmoniumlike Z c states and bottomonium-like Z b states can not be accommodated within the naive quark model. These charged Z c states are good candidates of either the hidden-charm tetraquark states or molecules composed of a pair of charmed mesons. Recently, the LHCb Collaboration discovered two hidden-charm pentaquark states, which are also beyond the quark model. In this work, we review the current experimental progress and investigate various theoretical interpretations of these candidates of the multiquark states. We list the puzzles and theoretical challenges of these models when confronted with the experimental data. We also discuss possible future measurements which may distinguish the theoretical schemes on the underlying structures of the hidden-charm multiquark states.

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Section: Other Molecular Models On the Z C (3900) And Z C (4025)mentioning

confidence: 97%

Section: The Meson Exchange Modelmentioning

confidence: 99%

Section: Other Molecular Models On the Z C (3900) And Z C (4025)mentioning

confidence: 99%

Section: Molecular Schemementioning

confidence: 99%

Section: Molecular Schemementioning

confidence: 99%

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The hidden-charm pentaquark and tetraquark states

et al. 2016

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The investigations of the P-wave Bs states combining quark model and lattice QCD in the coupled channel framework

Yang

Wang

et al. 2023

J. High Energ. Phys.

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Combining the quark model, the quark-pair-creation mechanism and B(*)$$ \overline{K} $$ K ¯ interaction, we have investigated the near-threshold P-wave Bs states in the framework of the Hamiltonian effective field theory. With the heavy quark flavor symmetry, all the parameters are determined in the Ds sector by fitting the lattice data. The masses of the bottom-strange partners of the $$ {D}_{s0}^{\ast }(2317) $$ D s 0 ∗ 2317 and $$ {D}_{s1}^{\ast }(2460) $$ D s 1 ∗ 2460 are predicted to be $$ {M}_{B_{s0}^{\ast }}={5730.2}_{-1.5}^{+2.4} $$ M B s 0 ∗ = 5730.2 − 1.5 + 2.4 MeV and $$ {M}_{B_{s1}^{\ast }}={5769.6}_{-1.6}^{+2.4} $$ M B s 1 ∗ = 5769.6 − 1.6 + 2.4 MeV, respectively, which are well consistent with the lattice QCD component. The two P-wave Bs states are the mixtures of the bare $$ \overline{b}s $$ b ¯ s core and B(*)$$ \overline{K} $$ K ¯ component. Moreover, we find a crossing point between the energy levels with and without the interaction Hamiltonian in the finite volume spectrum in the 0+ case, which corresponds to a CDD (Castillejo-Dalitz-Dyson) zero in the T-matrix of the $$ B\overline{K} $$ B K ¯ scattering. This CDD zero will help deepen the insights of the near-threshold states and can be examined by future lattice calculation.

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