Study of the B- --> J/psi K- pi+ pi- Decay and Measurement of the B- --> X(3872) K- Branching Fraction

Abstract

We study the decay B- --> J/psi K- pi+ pi- using 117 million BBbar events collected at the Y(4S) resonance with the BaBar detector at the PEP-II e+ e- asymmetric-energy storage ring. We measure the branching fractions Br(B- --> J/psi K- pi+ pi-) = (116 +- 7 (stat.) +- 9(syst.))* 10-5 and Br(B- --> X(3872)K-)* Br (X(3872) --> J/psi pi+ pi-) =(1.28+- 0.41)* 10-5 and find the mass of the X(3872) to be 3873.4 +- 1.4 MeV/c2. We search for the h_c narrow state in the decay B- --> h_c K-, h_c --> J/psi pi+ pi- and for the decay B- --> J/psi D0 pi-, with D0 --> K- pi+. We set the 90% C.L. limits Br(B- --> h_c K-)* Br (h_c --> J/psi pi+ pi-) <3.4 * 10-6 and Br(B- --> J/psi D0 pi-) <5.2 * 10-5.

7 pages 4 figures, submitted to Phys. Rev. Lett

Cited by in corpus (316)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• The $XYZ$ states: experimental and theoretical status and perspectives
• Multiquark Resonances
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• Heavy-Quark QCD Exotica
• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• Observation of a Broad Structure in the ${\pi }^{+}{\pi }^{-}J/\psi$ Mass Spectrum around 4.26 GeV/$c^2$
• Exotics: Heavy Pentaquarks and Tetraquarks
• The New Heavy Mesons: A Status Report
• Charmonium
• Determination of the X(3872) meson quantum numbers
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• New Charmonium States in QCD Sum Rules: a Concise Review
• Observation of a near-threshold omega-J/psi mass enhancement in exclusive B-->K omega J/psi decays
• New Exotic Meson and Baryon Resonances from Doubly-Heavy Hadronic Molecules
• Couplings in coupled channels versus wave functions: application to the X(3872) resonance
• Evidence for a Narrow Near-Threshold Structure in the $J/\psi \varphi$ Mass Spectrum in $B^{+}\to J/\psi \varphi K^{+}$ Decays
• The Exotic XYZ Charmonium-like Mesons
• Evidence of a Broad Structure at an Invariant Mass of 4.32 GeV/$c^2$ in the Reaction $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\psi (2S)$ Measured at BaBar
• Quarkonia and their transitions
• Can the X(3872) be a 1^{++} four-quark state?
• The X(3872) boson: Molecule or charmonium
• Observation of a new charmonium state in double charmonium production in e+ e- annihilation at \sqrt{s} ~ 10.6 GeV
• Four-Quark Hadrons: an Updated Review
• Pion Interactions in the X(3872)
• Is the X(3872) Production Cross Section at Tevatron Compatible with a Hadron Molecule Interpretation?
• Masses of heavy tetraquarks in the relativistic quark model
• Observation of $e^{+}{e}^{-}\to \gamma X(3872)$ at BESIII
• Evidence for the decay X(3872) --> J/psi omega
• Is X(3872) {\sl Really} a Molecular State?
• X(3872): Hadronic Molecules in Effective Field Theory
• Evidence for X(3872) --> psi(2S) gamma in B+/- --> X(3872) K+/- decays, and a study of B --> ccbar gamma K
• Bounds on the width, mass difference and other properties of X(3872) --> pi+pi-J/psi decays
• Observation of a Near-threshold $D^0{\bar{D}}^0{\pi }^0$ Enhancement in $B\to D^0{\bar{D}}^0{\pi }^{0}K$ Decay
• Reconciling the X(3872) with the near-threshold enhancement in the D^0\bar{D}^{*0} final state
• New states above charm threshold
• Search for the Z(4430)^- at BABAR
• An overview of $XYZ$ new particles
• Evidence for the decay $X(3872)\to \psi (2S)\gamma$
• Axial Resonances in the Open and Hidden Charm Sectors
• The Y(3940), Z(3930) and the X(4160) as dynamically generated resonances from the vector-vector interaction
• Exotic Hadrons from Heavy Ion Collisions
• Estimate for the X(3872) to gamma J/psi decay width
• Study of Resonances in Exclusive B Decays to Dbar(*)D(*)K
• Measurement of the X(3872) production cross section via decays to J/psi pi pi in pp collisions at sqrt(s) = 7 TeV
• Observation of $X(3872)\to J/\psi \gamma$ and search for $X(3872)\to {\psi }^{\prime }\gamma$ in B decays
• Observation of a peaking structure in the J/psi phi mass spectrum from B(+/-) to J/psi phi K(+/-) decays
• Isospin breaking effects in the X(3872) resonance
• Line Shapes of the X(3872)
• Tetra- and penta-quark structures in the constituent quark model
• New Hadron States
• Production of the X(3872) in charmonia radiative decays
• Measurement of the Dipion Mass Spectrum in X(3872) -> J/Psi Pi+ Pi- Decays
• Search for B+ --> X(3872) K+, X(3872) --> J/psi gamma
• Tetraquarks composed of 4 heavy quarks
• Interpretation of the X(3872) as a charmonium state plus an extra component due to the coupling to the meson-meson continuum
• Study of the $B\to X(3872)(\to D^{\ast 0}{\bar{D}}^0)K$ decay
• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• X(3872) as a molecular DD* state in a potential model
• QCD Sum Rules for the X(3872) as a mixed molecule-charmoniun state
• Charmed and strange baryon resonances with heavy-quark spin symmetry
• Hidden-charm pentaquarks and $P_c$ states
• Quantum numbers of the $X(3872)$ state and orbital angular momentum in its ${\rho }^{0}J\psi$ decay
• A study of B->X(3872) K, with X(3872)->J/Psi pi+ pi-
• Power Counting and Perturbative One Pion Exchange in Heavy Meson Molecules
• Precision Measurement of the X(3872) Mass in J/psi pi+ pi- Decays
• Is Z^+(4430) a loosely bound molecular state?
• Observation of the chi_c2(2P) meson in the reaction gamma gamma -> D Dbar at BABAR
• Quark structure of the $X(3872)$ and ${\chi }_b(3P)$ resonances
• Dynamical origin and the pole structure of X(3872)
• Hidden charm N and Delta resonances with heavy-quark symmetry
• The XYZ states revisited
• Study of the X(3872) and Y(4260) in B0-->J/psi pi+ pi- K0 and B-->J/psi pi+ pi- K- decays
• A New Hadron Spectroscopy
• A case for hidden $b\bar{b}$ tetraquarks based on $e^{+}{e}^{-}\to b\bar{b}$ cross section between $\sqrt{s}=10.54$ and 11.20 GeV
• Doubly-heavy tetraquarks
• Decays of the X(3872) and ${\chi }_{c1}(2P)$ charmonium
• Study of $e^{+}{e}^{-}\to \gamma \omega J/\psi$ and Observation of $X(3872)\to \omega J/\psi$
• Evidence of a new narrow resonance decaying to ${\chi }_{c1}\gamma$ in $B\to {\chi }_{c1}\gamma K$
• Diffusion Monte Carlo calculations of fully-heavy (multiquark) bound states
• Possible S-wave Bound-States of Two Pseudoscalar Mesons
• Precision measurement of D meson mass differences
• Heavy hadronic molecules with pion exchange and quark core couplings: a guide for practitioners
• Nature of X(3872) from data
• Deriving the existence of $B{\bar{B}}^{\ast }$ bound states from the X(3872) and Heavy Quark Symmetry
• Decays of the X(3872) into J/psi and Light Hadrons
• Effects of S-wave thresholds
• Charged Exotic Charmonium States
• Exotic nuclei with open heavy flavor mesons
• Strong $Z_c^{+}(3900)\to J/\psi {\pi }^{+};{\eta }_c{\rho }^{+}$ decays in QCD
• Canonical Charmonium Interpretation for Y(4360) and Y(4660)
• Measurements of $\psi (2S)$ and $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}$ production in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• The Y(2175) State in the QCD Sum Rule
• The Effects of Charged Charm Mesons on the Line Shapes of the X(3872)
• Dynamics of Hadronic Molecule in One-Boson Exchange Approach and Possible Heavy Flavor Molecules
• The Hidden Charm Decay of $X(3872),Y(3940)$ and Final State Interaction Effects
• Spectroscopy of the hidden-charm $[qc][\bar{q}\bar{c}]$ and $[sc][\bar{s}\bar{c}]$ tetraquarks
• Mass and decay constant of the newly observed exotic $X(5568)$ state
• Quarkonium Contribution to Meson Molecules
• Factorization in the Production and Decay of the X(3872)
• Evidence for X(3872) in PbPb collisions and studies of its prompt production at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Hadronic Molecular States Composed of Heavy Flavor Baryons
• $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}$ and $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}{\pi }^0$ decay widths from QCD sum rules
• $\{Q\bar{q}\}\{{\bar{Q}}^{{(}^{\prime })}q\}$ molecular states
• Study of $B{\bar{B}}^{\ast }$ and $B^{\ast }{\bar{B}}^{\ast }$ interactions in $I=1$ and relationship to the $Z_b(10610)$, $Z_b(10650)$ states
• X(3872) and its production at hadron colliders
• On $X(3872)$ production in high energy heavy ion collisions
• X(3872) is not a true molecule
• Hadronic effects on the X(3872) meson abundance in heavy ion collisions
• Spectroscopy and Decay properties of the charmonium
• X(3872) as a hybrid state of the charmonium and the hadronic molecule
• The study of $B_c^{-}\to X(3872){\pi }^{-}(K^{-})$ Decays in the Covariant Light-Front Approach
• Pionic transitions from X(3872) to chi_{cJ}
• Systematics of heavy quarkonia from Regge trajectories on $(n,M^2)$ and $(M^2,J)$ planes
• XYZ-like Spectra from Laplace Sum Rule at N2LO in the Chiral Limit
• Radiative E1 decays of X(3872)
• Do $c\bar{c}n\bar{n}$ bound states exist?
• $\{Q\bar{s}\}\{{\bar{Q}}^{{(}^{\prime })}s\}$ molecular states in QCD sum rules
• A Precision Determination of the D^0 Mass
• Relation between $T_{cc,bb}$ and $X_{c,b}$ from QCD
• Radiative transitions of heavy quarkonium states
• X(3872) in lattice QCD with exact chiral symmetry
• On the scattering of D and D* mesons off the X(3872)
• Observation of multiplicity-dependent prompt ${\chi }_{c1}(3872)$ and $\psi (2S)$ production in $pp$ collisions
• Production of the bottom analogues and the spin partner of the X(3872) at hadron colliders
• Searching for the Bottom Counterparts of X(3872) and Y(4260) via ${\pi }^{+}{\pi }^{-}{\rm Y}$
• Search for a new bottomonium state decaying to Upsilon(1S) pi+ pi- in pp collisions at sqrt(s) = 8 TeV
• Using Line Shapes to Discriminate between Binding Mechanisms for the X(3872)
• Width of the exotic $X_b(5568)$ state through its strong decay to $B_s^0{\pi }^{+}$
• Hunting for states in the recent LHCb di-$J/\psi$ invariant mass spectrum
• A Phenomenological analysis on isospin-violating decay of $X(3872)$
• Hadronic Loops versus Factorization in EFT calculations of $X(3872)\to {\chi }_{cJ}{\pi }^0$
• The bound state problem of S-wave heavy quark meson-aitimeson systems
• Heavy quark symmetry and weak decays of the $b$-baryons in pentaquarks with a $c\bar{c}$ component
• Hadron Spectroscopy: Theory and Experiment
• First Observation of psi(3770) --> gamma chi_{c1} --> gamma gamma J/psi
• $B\to {\chi }_{c1}(1P,2P)K$ decays in QCD factorization and X(3872)
• The ratio of decay widths of X(3872) to ${\psi }^{\prime }\gamma$ and $J/\psi \gamma$ as a test of the X(3872) dynamical structure
• On the nature of the X(3872) from QCD
• A Refined Analysis on the $X(3872)$ Resonance
• Lattice study on ${\eta }_{c2}$ and X(3872)
• X(3872) diagnostics with decays to D {\bar D} γ
• Isospin properties of the X state near the D {\bar D}^{*} threshold
• Pion induced Reactions for Charmed Baryons
• Weakly-bound Hadronic Molecule near a 3-body Threshold
• AdS-QCD quark-antiquark potential, meson spectrum and tetraquarks
• Studying the scalar bound states of the $K\bar{K}$ system in the Bethe-Salpeter formalism
• Radiative decay of the X(3872) as a mixed molecule-charmonium state in QCD Sum Rules
• X(3872) and its Partners in the Heavy Quark Limit of QCD
• X(3872) as a 1D2 charmonium state
• $X(3872)\to D\bar{D}\gamma$ decays and the structure of X(3872)
• Four-Quark Mesons in Non-leptonic B Decays--Could They Resolve Some Old Puzzles?
• Can $X(5568)$ be a tetraquark state?
• X(3872) and the bound state problem of $D^0{\bar{D}}^{\ast 0}$ (${\bar{D}}^0{D}^{\ast 0}$) in a chiral quark model
• Di-Pion Decays of Heavy Quarkonium in the Field Correlator Method
• Charmonium and Charmoniumlike States at the BESIII Experiment
• $B_c\to B_{sJ}$ form factors and $B_c$ decays into $B_{sJ}$ in covariant light-front approach
• Open charm meson in nuclear matter at finite temperature beyond the zero range approximation
• Study of the $X^{\pm }(5568)$ state with semileptonic decays of the $B_s^0$ meson
• $QQ\bar{s}\bar{s}$ tetraquarks in the chiral quark model
• $X(3872)$ as a four-quark state in a Dyson-Schwinger/Bethe-Salpeter approach
• Operator Product Expansion in the Production and Decay of the X(3872)
• Tetraquarks in the 1/N expansion and meson-meson resonances
• ${\mathrm{Z}}^{+}(4430)$ and Analogous Heavy Flavor States
• Search for the $X_b$ and other hidden-beauty states in the ${\pi }^{+}{\pi }^{-}{\rm Y}(1\mathrm{S})$ channel at ATLAS
• Application of the QCD light cone sum rule to tetraquarks: the strong vertices $X_b{X}_b\rho$ and $X_c{X}_c\rho$
• Production of strange and charmed baryons in pion induced reactions
• Exclusive Baryonic B Decays Circa 2005
• Angular distributions in $J/\psi (\rho ,\omega )$ states near threshold
• QCD Sum Rules for the production of the X(3872) as a mixed molecule-charmonium state in B meson decay
• Heavy quark spin selection rules in meson-antimeson states
• $X(3872)$, $X_b$, and the ${\chi }_{b1}(3P)$ state
• Too many $X^{\prime }s$, $Y^{\prime }s$ and $Z^{\prime }s$?
• Status of quarkonia - like negative and positive parity states in a relativistic confinement scheme
• Is $X(7200)$ the heavy anti-quark diquark symmetry partner of $X(3872)$?
• Observation of eta_c(1S) and eta_c(2S) decays to K+ K- pi+ pi- pi0 in two-photon interactions
• Study of the K+ pi+ pi- Final State in B+ -> J/psi K+ pi+ pi- and B+ -> psi-prime K+ pi+ pi-
• Open charm-bottom scalar tetraquarks and their strong decays
• New insight into the exotic states strongly coupled with the $D{\bar{D}}^{\ast }$ from the $T_{cc}^{+}$
• Using the decay ψ(4160) -> X(3872) γ to probe the molecular content of the X(3872)
• $Z_b(10650)$ and $Z_b(10610)$ states in a chiral quark model
• Triply heavy tetraquark states
• Measurement of ${\chi }_{c1}(3872)$ production in proton-proton collisions at $\sqrt{s}=8$ and $13$ TeV
• Investigation of hidden-charm double strange pentaquark candidate $P_{css}$ via its mass and strong decays
• X(3872): propagating in a dense medium
• Comprehending Isospin breaking effects of $X(3872)$ in a Friedrichs-model-like scheme
• 1-- and 0++ heavy four-quark and molecule states in QCD
• Radiative decays of dynamically generated charmed baryons
• Elementarity of composite systems
• The X(3872) and the 3941 MeV peak in omega+J/Psi
• An Estimate of the Partial Width for X(3872) into p p-bar
• Inclusive Production of the X(3872)
• Charmonium spectrum and new observed states
• X(3872) in an unquenched quark model
• Precise measurement of spin-averaged chi_{cJ}(1P) mass using photon conversions in psi(2S) -> gamma chi_{cJ}
• Open charm-bottom axial-vector tetraquarks and their properties
• X(2900) in a chiral quark model
• Production of Charmed Tetraquarks from $B_c$ and $B$ decays
• Couplings between the $\rho$ and $D$- and $D^{\ast }$-mesons
• Hunting for the $X_b$ via hidden bottomonium decays
• Experimental Review of Structures in the $J/\psi \varphi$ Mass Spectrum
• Magnetic dipole moment of $Z_b(10610)$ in light-cone QCD
• Possible tetraquark states in the ${\pi }^{+}{\chi }_{c1}$ invariant mass distribution
• Recent progress on the study of the charmoniumlike states
• EM Decay of X(3872) as the $1{}^1{D}_2(2^{-+})$ charmonium
• Testing the doubly charged charm-strange tetraquarks
• Heavy Quark Spectroscopy -- Theory Overview
• Doubly Charmful Baryonic B Decays
• The X(3872) Meson and "Exotic" Spectroscopy at CDF II
• Hybrid States from Constituent Glue Model
• Decipher the short-distance component of $X(3872)$ in $B_c$ decays
• Dimesonic states with the heavy-light flavour mesons
• Triangle singularity appearing as an $X(3872)$-like peak in $B\to (J/\psi {\pi }^{+}{\pi }^{-})K\pi$
• Study of the lineshape of $X(3872)$ using $B$ decays to $D^0\overline{D}{}^{\ast 0}K$
• Central exclusive quarkonium production with tagged forward protons at RHIC
• X(3872) in a hot pion bath
• Measurement of D^0 and D^+ meson masses with the KEDR Detector
• Precision Measurement of the Mass of the $D^{\ast 0}$ Meson and the Binding Energy of the $X(3872)$ Meson as a $D^0\overline{D^{\ast 0}}$ Molecule
• The $c\bar{c}$ interaction above threshold and the radiative decay $X(3872)\to J/\psi \gamma$
• Search for B decays to final states with the eta_c meson
• Understanding the newly observed Y(4008) by Belle
• Production of X(3872) at PANDA
• $D_{s0}(2590)$ as a dominant $c\bar{s}$ state with a small $D^{\ast }K$ component
• Observation of a New $X(3872)$ Production Process $e^{+}{e}^{-}\to \omega X(3872)$
• Production of the spin partner of the X(3872) in e^+e^- collisions
• Instanton effects on the heavy-quark static potential
• Spectroscopy of Mesons with Heavy Quarks
• A Simple Explanation for the X(3872) Mass Shift Observed for Decay to D^{*0} {D^0}bar
• Observation of the ${\Lambda }_b^0\to {\chi }_{c1}(3872)p{K}^{-}$ decay
• Tetraquarks with charm in coupled-channel formalism
• X(3872) as a molecular $D{\bar{D}}^{\ast }$ state in the Bethe-Salpeter equation approach
• Deciphering the $X(3872)$ via its polarization in prompt production at the CERN LHC
• Possible $D^{(\ast )}{\bar{D}}^{(\ast )}$ and $B^{(\ast )}{\bar{B}}^{(\ast )}$ molecular states in the extended constituent quark models
• Possible hadronic molecular states composed of $S$-wave heavy-light mesons
• Forming Molecular States with Hadronic Rescattering
• Radiative and pionic transitions $Z_c(4020{)}^0\to X(3872)\gamma$ and $Z_c(4020{)}^{\pm }\to X(3872){\pi }^{\pm }$
• Heavy Flavour Physics at the LHC
• Observation of $e^{+}{e}^{-}\to \varphi {\chi }_{c1}$ and $\varphi {\chi }_{c2}$ at $\sqrt{s}$=4.600 GeV
• Observation of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\psi (3770)$ and $D_1(2420{)}^0{\bar{D}}^0+c.c.$
• $Qq\bar{Q}{\bar{q}}^{\prime }$ States in Chiral SU(3) Quark Model
• $P$-wave charmonium contribution to hidden-charm states from reanalysis of lattice QCD data
• Status and Prospects of Exotic Hadrons at Belle II
• Charmonium possibility of X(3872)
• Search for Resonant $B^{\pm }\to K^{\pm }h\to K^{\pm }\gamma \gamma$ Decays at Belle
• Width of a two-body coupled-channel resonance
• Study of charmonium and charmonium-like contributions in $B^{+}\to J/\psi \eta K^{+}$ decays
• Resonance $X(5568)$ as an exotic axial-vector state
• Fall-apart decays of polyquark hadrons
• Investigation of a candidate spin-$\frac{1}{2}$ hidden-charm triple strange pentaquark state $P_{csss}$
• Probing an axial-vector tetraquark $Z_s$ via its semileptonic decay $Z_s\to X(4274)\overline{l}{\nu }_l$
• Instanton effects on charmonium states
• Search for B -> J/psi D Decays
• $K^0\Lambda$ and $D^{-}{\Lambda }_c^{+}$ production induced by pion beams off the nucleon
• Search for tetraquark states $X_{cc\bar{s}\bar{s}}$ in $D_s^{+}{D}_s^{+}(D_s^{\ast +}{D}_s^{\ast +})$ final states at Belle
• Baryons under Strong Magnetic Fields or in Theories with Space-dependent $\theta$-term
• Heavy Hadron Spectroscopy
• The study on the structure of exotic states ${\chi }_{c1}(3872)$ via beauty-hadron decays in $pp$ collisions at $\sqrt{s}=8\mathrm{TeV}$
• Tetraquarks, their Masses and Decays in QED_2
• Search for $C=+$ charmonium and XYZ states in $e^{+}{e}^{-}\to \gamma +H$ at BESIII
• Search for the decay ${\chi }_{c1}(3872)\to {\pi }^{+}{\pi }^{-}{\chi }_{c1}$
• Hunting for $X_b$ via hidden bottomonium decays $X_b\to \pi \pi {\chi }_{bJ}$
• Calculation of the Branching Ratio of $B^{-}\to h_c+K^{-}$ in PQCD
• Three body open flavor decays of higher charmonium and bottomonium
• Analysis of the vector meson transitions among the heavy quarkonium states
• Semileptonic $B_c$ decays to $P-$wave charmonium and the nature of ${\chi }_{c1}(3872)$
• Heptaquarks with two heavy antiquarks in a simple chromomagnetic model
• Observation of the $B_s^0\to J/\psi K_{\mathrm{S}}^0{K}^{\pm }{\pi }^{\mp }$ decay
• New Experiments with Antiprotons
• New Spectroscopy with PANDA at FAIR: X, Y, Z and the F-wave Charmonium States
• Summary of ICHEP 2004
• Gluons, Light and Heavy Quarks in the Instanton Vacuum
• Mass Spectrum of Exotic X(5568) State via Artificial Neural Network
• $S$-wave contributions to the $B_{(s)}\to {\chi }_{c1}(\pi \pi ,K\pi ,KK)$ decays
• Mixing angles between the tetraquark states with two heavy quarks within QCD sum rules
• Novel correlated $D^0\overline{D}{}^0$ systems for $c/b$ physics and tests of $T/CPT$
• Stability of Matter-Antimatter Molecules
• Two-Loop QCD Renormalization and Anomalous Dimension of the Scalar Diquark Operator
• Heavy baryon production with an instanton interaction
• Regge Trajectories of Tetraquarks and Pentaquarks with Massive Quarks in the Flux Tube Model
• Fine Splitting in Charmonium Spectrum with Channel Coupling Effect
• 1-- and 0++ Four-Quarks and Molecules from QCD Spectral Sum Rules
• Production of the (predicted) $K^{\ast }(4307)$ in $B$ decays
• Heavy Quarkonium Physics from Effective Field Theories
• Dynamical study of the possible molecular state X(3872) with the s-channel one gluon exchange interaction
• Hidden-Charm Tetraquarks in a Mixture Model: Coupled-Channel Analysis with $c\bar{c}$ and Hadronic Molecular Components
• Exploring S-Wave Threshold Effects in QCD: A Heavy-Light Approach
• b decays: a factory for hidden charm multiquark states
• New charmonium-like states
• Heavy-meson chiral Lagrangians, effective flavored couplings, SU(4) flavor breaking and their consequences
• Schottky Anomaly and Hadronic Spectrum
• A New Experiment to Study Hyperon CP Violation and the Charmonium System
• Exotic c c-bar Mesons
• Study the Heavy Molecular States in Quark Model with Meson Exchange Interaction
• Recent results from the KEDR Detector
• The $X(3872)\to J/\psi \pi \gamma$ and $X(3872)\to J/\psi \pi \pi \gamma$ decays
• Superradiance and subradiance in the electromagnetic radiative decay of X(3872)
• Beyond CP violation: hadronic physics at BaBar
• Strong Decays of Charmonia
• Charm and Charmonium Spectroscopy
• Hidden and open charm at Belle (and elsewhere)
• Hybrid meson decay from lattice QCD
• S-wave bottom tetraquarks
• Recent issues in hadron spectroscopy
• The effects of charmonium on the properties of the $1^{++}$ hidden charm poles in effective field theory
• Observation of the first iso-spin Charmonium-like State $Z_c(4020)$ }
• Search for the decays $X(3872)\to K_S^0{K}^{\pm }{\pi }^{\mp }$ and $K^{\ast }(892)\bar{K}$ at BESIII
• Insights into the nature of the $X(3872)$ through B meson decays
• On the origin of the narrow peak and the isospin symmetry breaking of the $X$(3872)
• Exotic Quarkonium Spectroscopy: X(3872), Z_b(10610), and Z_b(10650) in Non-Relativistic Effective Theory
• Search for the $e^{+}{e}^{-}\to \varphi {\chi }_{c1}(3872)$ process at BESIII
• Summary of Experimental Meson Physics
• Studies with Onia at LHCb
• Signatures of Exotic Hadrons