Exotic mesons with hidden bottom near thresholds

Abstract

We study heavy hadron spectroscopy near open bottom thresholds. We employ B and B* mesons as effective degrees of freedom near the thresholds, and consider meson exchange potentials between them. All possible composite states which can be constructed from the B and B* mesons are studied up to the total angular momentum J = 0, 1, 2. We consider, as exotic states, isosinglet states with exotic (J,PC) quantum numbers and isotriplet states. We solve numerically the Schrodinger equation with channel-couplings for each state. The masses of twin resonances Zb(10608) and Zb(10653) recently found by Belle are reproduced. We predict several possible bound and/or resonant states in other channels for future experiments.

27 pages, 2 figure

References in corpus (18)

• Heavy quarkonium: progress, puzzles, and opportunities
• Observation of two charged bottomonium-like resonances in Y(5S) decays
• Charmonium
• Hadro-Charmonium
• X(3872) and Other Possible Heavy Molecular States
• Is X(3872) {\sl Really} a Molecular State?
• Is X(3872) a molecule?
• Multi-quark hadrons from Heavy Ion Collisions
• Heavy Quark Symmetry Predictions for Weakly Bound B-Meson Molecules
• Decay channels and charmonium mass-shifts
• Tetraquark Interpretation of the Charged Bottomonium-like states Z_b^+-(10610) and Z_b^+-(10650) and Implications
• Exotic baryons from a heavy meson and a nucleon -- Negative parity states --
• Exotic nuclei with open heavy flavor mesons
• New Heavy-Light Mesons $Q\bar{q}$
• Determination of B*B pi coupling in unquenched QCD
• The chiral transitions in heavy-light mesons
• Charged bottomonium-like structures in the hidden-bottom dipion decays of ${\rm Y}(11020)$
• Exotic Charmonium and Bottomonium-like Resonances

Cited by in corpus (51)

• Hadronic molecules
• QCD and strongly coupled gauge theories: challenges and perspectives
• Exotic Hadrons with Heavy Flavors -X, Y, Z and Related States-
• Spectrum of heavy baryons in the quark model
• Exotic hadrons: review and perspectives
• Exotic Hadrons from Heavy Ion Collisions
• Possible assignments of the $X(3872)$, $Z_c(3900)$ and $Z_b(10610)$ as axial-vector molecular states
• Coupled-channel analysis of the possible $D^{(\ast )}{D}^{(\ast )}$, ${\bar{B}}^{(\ast )}{\bar{B}}^{(\ast )}$ and $D^{(\ast )}{\bar{B}}^{(\ast )}$ molecular states
• Reanalysis of the $Y(3940)$, $Y(4140)$, $Z_c(4020)$, $Z_c(4025)$ and $Z_b(10650)$ as molecular states with QCD sum rules
• The $Z_b(10610)$ and $Z_b(10650)$ as axial-vector tetraquark states in the QCD sum rules
• Confirming the molecular nature of the $Z_b(10610)$ and the $Z_b(10650)$
• Exotic mesons with double charm and bottom flavor
• Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners
• Study of e+e- => B(*) B(*)-bar pi+- at sqrt(s)=10.866 GeV
• Employing spin symmetry to disentangle different models for the XYZ states
• Amplitude analysis of e+e- => Y(nS)pi+pi- at sqrt(s)=10.865 GeV
• Heavy quark symmetry in multi-hadron systems
• X(3872) in the molecular model
• Hidden-charm and bottom meson-baryon molecules coupled with five-quark states
• The line shapes of the $Z_b(10610)$ and $Z_b(10650)$ in the elastic and inelastic channels revisited
• Hidden-charm pentaquarks as a meson-baryon molecule with coupled channels for ${\bar{D}}^{(\ast )}{\Lambda }_{\mathrm{c}}$ and ${\bar{D}}^{(\ast )}{\Sigma }_{\mathrm{c}}^{(\ast )}$
• Heavy quark dynamics for charm and bottom flavor on Fermi surface at zero temperature
• General considerations on the nature of $Z_b(10610)$ and $Z_b(10650)$ from their pole positions
• X(3872) as a hybrid state of the charmonium and the hadronic molecule
• Production of doubly charmed tetraquarks with exotic color configurations in electron-positron collisions
• $\bar{\mathrm{D}}$ and $\mathrm{B}$ mesons in nuclear medium
• ${\bar{B}}^{(\ast )}{\bar{B}}^{(\ast )}$ interactions in chiral effective field theory
• Analysis of the hidden-bottom tetraquark mass spectrum with the QCD sum rules
• Decays and productions via bottomonium for Z_b resonances and other B anti-B molecules
• Search for doubly-heavy dibaryons in a quark model
• Could $Z_c(4025)$ be a $J^P=1^{+}$ $D^{\ast }\overline{D^{\ast }}$ molecular state?
• Hadron physics potential of future high-luminosity B-factories at the Upsilon(5S) and above
• Hadronic molecules for charmed and bottom baryons near thresholds
• Decays of Zb -> Upsilon + pi via triangle diagrams in heavy meson molecules
• Chiral Perturbation Theory and the $\bar{B}\bar{B}$ Strong Interaction
• Insights into $Z_b(10610)$ and $Z_b(10650)$ from dipion transitions from ${\rm Y}(10860)$
• Triply charmed dibaryons in the one boson exchange model
• The $Z_b$ structures in a constituent quark model coupled-channels calculation
• Possible hadronic molecular states composed of $S$-wave heavy-light mesons
• Production and absorption of exotic bottomonium-like states in high energy heavy ion collisions
• Heavy quark spin partners of the $Y(4260)$ in coupled-channel formalism
• Is $J^{PC}=3^{-+}$ molecule possible?
• $Z_b(10610)$ in a hadronic medium
• An introduction to the quark model
• Spin Partners of the $B^{(\ast )}{\bar{B}}^{(\ast )}$ resonances with a different approach than the Breit-Wigner parameterization
• Investigating $S$-wave bound states composed of two pseudoscalar mesons
• Disentangle the nature of resonances in coupled-channel models
• Exotic mesons with hidden charm and bottom near thresholds
• Exotic baryons from a heavy meson and a nucleon
• $D{\bar{D}}^{\ast }$-$\pi J/\psi$ scatterings of coupled channels for $Z_c(3900)$ channel
• Insights into the exotic charged states $Z_b(10610)$ and $Z_b(10650)$ from their photoproduction off nuclei