Hadronic molecules

Guo, Feng-Kun; Hanhart, C.; Meißner, Ulf‐G.; Wang, Qian; Zhao, Qiang; Zou, B. S.

doi:10.1103/revmodphys.90.015004

Cited by 1,250 publications

(1,029 citation statements)

References 756 publications

(1,065 reference statements)

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“…[145], X (3872) is excluded as being the yet-unobserved conventional charmonium state χ c1 (2P). X (3872) is also discussed in the D 0D * 0 hadronic molecular scenario [147].…”

Section: Masses Of Bottomoniamentioning

confidence: 99%

Regge trajectories for heavy quarkonia from the quadratic form of the spinless Salpeter-type equation

Chen

2018

Eur. Phys. J. C

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In this paper, we present one new form of the Regge trajectories for heavy quarkonia which is obtained from the quadratic form of the spinless Salpeter-type equation (QSSE) by employing the Bohr-Sommerfeld quantization approach. The obtained Regge trajectories take the parameterized form M 2 = β(c l l + π n r + c 0 ) 2/3 + c 1 , which are different from the present Regge trajectories. Then we apply the obtained Regge trajectories to fit the spectra of charmonia and bottomonia. The fitted Regge trajectories are in good agreement with the experimental data and the theoretical predictions.

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“…[145], X (3872) is excluded as being the yet-unobserved conventional charmonium state χ c1 (2P). X (3872) is also discussed in the D 0D * 0 hadronic molecular scenario [147].…”

Section: Masses Of Bottomoniamentioning

confidence: 99%

Regge trajectories for heavy quarkonia from the quadratic form of the spinless Salpeter-type equation

Chen

2018

Eur. Phys. J. C

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“…(4.1) as input for the Z b 's. 8 However, as soon as the pion exchange is added, the strength of the off-diagonal elements changes and the system gets sensitive to the interchange C 1 ↔ C 1 . It turns out that, in the presence of the OPE with its physical strength (3. the first solution which in the strict HQSS limit corresponds to eq.…”

Section: Comment On the Pionless Theorymentioning

confidence: 99%

Spin partners of the Z b (10610) and Z b (10650) revisited

Baru

Epelbaum

Filin

et al. 2017

J. High Energ. Phys.

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We study the implications of the heavy-quark spin symmetry for the possible spin partners of the exotic states Z b (10610) and Z b (10650) in the spectrum of bottomonium. We formulate and solve numerically the coupled-channel equations for the Z b states that allow for a dynamical generation of these states as hadronic molecules. The force includes short-range contact terms and the one-pion exchange potential, both treated fully nonperturbatively. The strength of the potential at leading order is fixed completely by the pole positions of the Z b states so that the mass and the most prominent contributions to the width of the isovector heavy-quark spin partner states W bJ with the quantum numbers J ++ (J = 0, 1, 2) come out as predictions. In particular, we predict the existence of an isovector 2 ++ tensor state lying a few MeV below the B * B * threshold which should be detectable in the experiment. Since the accuracy of the present experimental data does not allow one to fix the pole positions of the Z b 's reliably enough, we also study the pole trajectories of their spin partner states as functions of the Z b binding energies. It is shown that, once the heavy-quark spin symmetry is broken by the physical B and B * mass difference, especially the pion tensor force has a significant impact on the location of the partner states clearly demonstrating the need of a coupled-channel treatment of pion dynamics to understand the spin multiplet pattern of hadronic molecules.

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“…[8,15,16] we assume the (approximate) validity of SU(3) flavor symmetry for the coupling strengths involved. 2 This assumption allows one to establish relations between the forces in channels with different isospin and strangeness, and we recapitulate the implications of SU (3) symmetry for the interactions in the BD and DD systems. In addition we investigate the consequences of SU(3) symmetry for transitions from these systems to states composed of two octet baryons (BB).…”

Section: Introductionmentioning

confidence: 99%

“…[15,16], performed in the way described above, may be fairly realistic. In this context let us mention that also for other baryon-baryon channels LQCD simulations have been performed with almost physical quark masses [34][35][36] and preliminary results for phase shifts have become available 3 for some channels.…”

Section: Introductionmentioning

confidence: 99%

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Scattering of decuplet baryons in chiral effective field theory

et al. 2017

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A formalism for treating the scattering of decuplet baryons in chiral effective field theory is developed. The minimal Lagrangian and potentials in leading-order SU(3) chiral effective field theory for the interactions of octet baryons (B) and decuplet baryons (D) for the transitions BB → BB, BB ↔ DB, DB → DB, BB ↔ DD, DB ↔ DD, and DD → DD are provided. As an application of the formalism we compare with results from lattice QCD simulations for ΩΩ and N Ω scattering. Implications of our results pertinent to the quest for dibaryons are discussed.

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Hadronic molecules

Cited by 1,250 publications

References 756 publications

Regge trajectories for heavy quarkonia from the quadratic form of the spinless Salpeter-type equation

Regge trajectories for heavy quarkonia from the quadratic form of the spinless Salpeter-type equation

Spin partners of the Z b (10610) and Z b (10650) revisited

Scattering of decuplet baryons in chiral effective field theory

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