Observation of a near-threshold omega-J/psi mass enhancement in exclusive B-->K omega J/psi decays

Abstract

We report the observation of a near-threshold enhancement in the omega-J/psi invariant mass distribution for exclusive B-->K omega J/psi decays. The results are obtained from a 253 fb-1 data sample that contains 275 million BB-bar meson pairs that were collected near the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The statistical significance of the omega-J/psi mass enhancement is estimated to be greater than 8 sigma.

12 pages, 4 figures, submitted to Physical Review Letters

References in corpus (29)

• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Observation of the Narrow State $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}$ in $\bar{p}p$ Collisions at $\sqrt{s}=1.96 \TeV$
• Observation and Properties of the X(3872) Decaying to J/psi pi+ pi- in p-p(bar) Collisions at sqrt(s) = 1.96 TeV
• Isospin breaking of the narrow charmonium state of Belle at 3872 MeV as a deuson
• From the Deuteron to Deusons, an Analysis of Deuteronlike Meson-Meson Bound States
• Study of the B- --> J/psi K- pi+ pi- Decay and Measurement of the B- --> X(3872) K- Branching Fraction
• Short Range Structure in the X(3872)
• The D*0 D0bar threshold resonance
• Exotic QQ\qbar\qbar States in QCD
• Charmonium Options for the X(3872)
• Charmonium levels near threshold and the narrow state $X(3872) \to π^{+}π^{-}\jpsi$
• Observation of Double cc bar Production in e+ e- Annihilation at sqrt{s} ~ 10.6 GeV
• The Production and Decay of Hybrid Mesons by Flux-Tube Breaking
• Molecular States of Heavy Quark Mesons
• Exotic mesons in quenched lattice QCD
• Observation of the eta_c(2S) in exclusive B-->K KsK-pi+ decays
• Observation of eta_c^{prime} Production in gamma gamma Fusion at CLEO
• Measurements of the mass and width of the eta_c meson and of an eta_c(2S) candidate
• On the hidden charm state at 3872 MeV
• Hybrid meson decay from the lattice
• Charmonium Hybrid Production in Exclusive B Meson Decays
• New Metastable Charmonium and the ${\psi }^{\prime }$ Anomaly at CDF
• Exotic mesons from quantum chromodynamics with improved gluon and quark actions on the anisotropic lattice
• Production of the X(3870) at the Upsilon(4S) by the Coalescence of Charm Mesons
• Hybrid Charmonium Production in B Decays
• Gluonic Hadrons and Charmless B Decays
• Search for a Charmonium Assignment for the X(3872)
• Do psi(4040), psi(4160) signal Hybrid Charmonium?

Cited by in corpus (229)

• Heavy quarkonium: progress, puzzles, and opportunities
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• The $XYZ$ states: experimental and theoretical status and perspectives
• Multiquark Resonances
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• Higher Charmonia
• 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
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• QCD and strongly coupled gauge theories: challenges and perspectives
• Charmonium
• 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
• Exotic Hadrons with Heavy Flavors -X, Y, Z and Related States-
• 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
• Quarkonia and their transitions
• Multiquark States
• The possible hidden-charm molecular baryons composed of anti-charmed meson and charmed baryon
• 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
• Gluonic charmonium resonances at BaBar and Belle?
• Four-Quark Hadrons: an Updated Review
• Amplitude analysis of the $B^{+}\to D^{+}{D}^{-}{K}^{+}$ decay
• Masses of heavy tetraquarks in the relativistic quark model
• Evidence for the decay X(3872) --> J/psi omega
• The Possible Interpretations of Y(4260)
• Bounds on the width, mass difference and other properties of X(3872) --> pi+pi-J/psi decays
• Coupled-channel model for charmonium levels and an option for X(3872)
• Suppressed decay into open charm for the Y(4260) being an hybrid
• Search for new charmonium states in the processes e+ e- --> J/psi D(*) D(*) at sqrt{s} ~ 10.6 GeV
• New states above charm threshold
• An overview of $XYZ$ new particles
• Observation of Y(3940) -> J/psi omega in B -> J/psi omega K at BABAR
• Hadronic molecule structure of the Y(3940) and Y(4140)
• The Y(3940), Z(3930) and the X(4160) as dynamically generated resonances from the vector-vector interaction
• Observation of a charmonium-like enhancement in the gamma gamma --> omega J/psi process
• Observation of a peaking structure in the J/psi phi mass spectrum from B(+/-) to J/psi phi K(+/-) decays
• Excited heavy tetraquarks with hidden charm
• Weak decays of heavy hadrons into dynamically generated resonances
• Potential model calculations and predictions for heavy quarkonium
• Tetra- and penta-quark structures in the constituent quark model
• New Hadron States
• Y(4143) is probably a molecular partner of Y(3930)
• Exotic tetraquark states with the $qq\bar{Q}\bar{Q}$ configuration
• Search for B+ --> X(3872) K+, X(3872) --> J/psi gamma
• Reanalysis of the $Y(3940)$, $Y(4140)$, $Z_c(4020)$, $Z_c(4025)$ and $Z_b(10650)$ as molecular states with QCD sum rules
• 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
• Charmed and strange baryon resonances with heavy-quark spin symmetry
• Hidden-charm pentaquarks and $P_c$ states
• X(3872) and Y(4140) using diquark-antidiquark operators with lattice QCD
• Study of the reaction e^{+}e^{-} -->J/psiπ^{+}π^{-} via initial-state radiation at BaBar
• Observation of the chi_c2(2P) meson in the reaction gamma gamma -> D Dbar at BABAR
• Hidden charm N and Delta resonances with heavy-quark symmetry
• Constituent quark model description of charmonium phenomenology
• Where is the χ_{c0}(2P)?
• A New Hadron Spectroscopy
• Study of X(3915) --> J/ψω in two-photon collisions
• Study of $e^{+}{e}^{-}\to \gamma \omega J/\psi$ and Observation of $X(3872)\to \omega J/\psi$
• Future Prospects for Hadron Physics at PANDA
• Exotic Hadrons with Hidden Charm and Strangeness
• Possible Deuteron-like Molecular States Composed of Heavy Baryons
• ${\chi }_{c0}^{}(3915)$ As the Lightest $c\bar{c}s\bar{s}$ State
• A chromomagnetic mechanism for the X(3872) resonance
• Analysis of the Y(4140) with QCD sum rules
• A QCD sum rule calculation for the Y(4140) narrow structure
• Y(4140): Possible options
• Canonical Charmonium Interpretation for Y(4360) and Y(4660)
• Hadron interaction with heavy quarkonia
• Quark model description of the tetraquark state X(3872) in a relativistic constituent quark model with infrared confinement
• The Hidden Charm Decay of $X(3872),Y(3940)$ and Final State Interaction Effects
• Observation of an alternative ${\chi }_{c0}(2P)$ candidate in $e^{+}{e}^{-}\to J/\psi D\bar{D}$
• Open-charm meson spectroscopy
• Chromomagnetism, flavour symmetry breaking and S-wave tetraquarks
• $\{Q\bar{q}\}\{{\bar{Q}}^{{(}^{\prime })}q\}$ molecular states
• Possible Molecular States of $D_s^{\ast }{\bar{D}}_s^{\ast }$ System and Y(4140)
• Charmonium resonances in the 3.9 GeV/$c^2$ energy region and the $X(3915)/X(3930)$ puzzle
• Is the X(3915) the chi_{c0}(2P)?
• Molecular structures in charmonium spectrum: The $XYZ$ puzzle
• The Y(4260) as an omega chi_{c1} molecular state
• Spectroscopy and Decay properties of the charmonium
• On the possibility of Deeply Bound Hadronic Molecules from single Pion Exchange
• Pionic transitions from X(3872) to chi_{cJ}
• Central exclusive production within the Durham model: a review
• Systematics of heavy quarkonia from Regge trajectories on $(n,M^2)$ and $(M^2,J)$ planes
• Study of charmonium-like and fully-charm tetraquark spectroscopy
• $(Q\bar{s}{)}^{(\ast )}(\bar{Q}s{)}^{(\ast )}$ molecular states from QCD sum rules: a view on Y(4140)
• XYZ-like Spectra from Laplace Sum Rule at N2LO in the Chiral Limit
• Scalar tetraquark state candidates: $X(3915)$, $X(4500)$ and $X(4700)$
• Systematic studies of charmonium-, bottomonium-, and $B_c$-like tetraquark states
• Probing new types of $P_c$ states inspired by the interaction between an $S$-wave charmed baryon and an anticharmed meson in a $\bar{T}$ doublet state
• Do $c\bar{c}n\bar{n}$ bound states exist?
• $\{Q\bar{s}\}\{{\bar{Q}}^{{(}^{\prime })}s\}$ molecular states in QCD sum rules
• Analysis of the Y(4140) and related molecular states with QCD sum rules
• Hadronic Superpartners from Superconformal and Supersymmetric Algebra
• Hadron Spectroscopy: Theory and Experiment
• Weak productions of new charmonium in semi-leptonic decays of B_c
• Hadronic molecules with both open charm and bottom
• QCD sum rule calculation for the charmonium-like structures in the J/psi phi and J/psi omega invariant mass spectra
• Novel charmonium-like structures in the $J/\psi \varphi$ and $J/\psi \omega$ invariant mass spectra
• The open-charm radiative and pionic decays of molecular charmonium Y(4274)
• Observation of a resonant structure near the $D_s^{+}{D}_s^{-}$ threshold in the $B^{+}\to D_s^{+}{D}_s^{-}{K}^{+}$ decay
• Are the $X$(4160) and $X$(3915) charmonium states?
• Is $Z_b(10610)$ a Molecular State?
• AdS-QCD quark-antiquark potential, meson spectrum and tetraquarks
• Charged charmoniumlike state $Z_c(3900{)}^{\pm }$ via meson photoproduction
• $X(3872)\to D\bar{D}\gamma$ decays and the structure of X(3872)
• Strong decays of the $XYZ$ states
• Charmonium states in QCD-inspired quark potential model using Gaussian expansion method
• Four-Quark Mesons in Non-leptonic B Decays--Could They Resolve Some Old Puzzles?
• Molecular Interpretation of $X(3960)$ as $D_s^{+}{D}_s^{-}$ State
• Exploring the resonances $X(4140)$ and $X(4274)$ through their decay channels
• Possible psi(5S), psi(4D), psi(6S) and psi(5D) signals in Lambda(c)-antiLambda(c)
• Radiative decays of the Y(3940), Z(3930) and the X(4160) as dynamically generated resonances
• From the Kappa via the Ds0*(2317) to the chi_c0: connecting light and heavy scalar mesons
• The molecular systems composed of the charmed mesons in the $H\bar{S}+h.c.$ doublet
• Open charm meson in nuclear matter at finite temperature beyond the zero range approximation
• Hadronic Spectrum - Multiquark States
• $X(3915)$ as a $D_s{\bar{D}}_s$ bound state
• What do the radiative decays of X(3872) tell us
• Correlation of the hidden-charm molecular tetraquarks and the charmoniumlike structures existing in the $B\to XYZ+K$
• Possible $J^{PC}=0^{--}$ Charmonium-like State
• The line shape of the radiative open-charm decay of Y(4140) and Y(3930)
• Mass Predictions for Pseudoscalar $J^{PC}=0^{-+}$ Charmonium and Bottomonium Hybrids in QCD Sum-Rules
• Relating $D^{\ast }{\bar{D}}^{\ast }$ currents with $J^{\pi }=0^{+},1^{+}$ and $2^{+}$ to $Z_c$ states
• Study on the strong decays of $\varphi (2170)$ and a grand expectation for the future charm-tau factory
• Heavy quark spin selection rules in meson-antimeson states
• An alternative fit to Belle mass spectra for DD, D*D* and Lambda_C Lambda_c
• Study of $J/\psi \to \omega p\bar{p}$ at BESIII
• Observation of eta_c(1S) and eta_c(2S) decays to K+ K- pi+ pi- pi0 in two-photon interactions
• Analysis of the X(4350) as a scalar $\bar{c}c$ and $D_s^{\ast }{\bar{D}}_s^{\ast }$ mixing state with QCD sum rules
• Understanding the $0^{++}$ and $2^{++}$ charmonium(-like) states near 3.9 GeV
• Possible molecular states of ${\bar{D}}^{\ast }{K}^{\ast }$ ($D^{\ast }{K}^{\ast }$) and the new exotic states $X_0(2900)$ and $X_1(2900)$ ($T_{cs0}^a(2900{)}^0$ and $T_{cs0}^a(2900{)}^{++}$)
• Exotic B_c-like molecules in QCD Sum Rules
• $Z_b(10650)$ and $Z_b(10610)$ states in a chiral quark model
• The $B^{+}\to J/\psi \omega K^{+}$ reaction and $D^{\ast }{\bar{D}}^{\ast }$ molecular states
• Tetraquarks as Diquark Antidiquark Bound Systems
• The X(3872) and the 3941 MeV peak in omega+J/Psi
• Radiative decays of dynamically generated charmed baryons
• An Estimate of the Partial Width for X(3872) into p p-bar
• The radiative decays of $0^{++}$ and $1^{+-}$ heavy mesons
• Production rates of $D_s^{+}{D}_s^{-}$ and $D\bar{D}$ molecules in $B$ decays
• Charmonium spectrum and new observed states
• Spin 3/2 Penta-quarks in anisotropic lattice QCD
• Where are ${\chi }_{cJ}(3P)$?
• Probing the $XYZ$ states through radiative decays
• The Productions and Strong Decays of $D_q(2S)$ and $B_q(2S)$
• Search for the h_c meson in B^+- ->h_c K^+-
• Possible tetraquark states in the ${\pi }^{+}{\chi }_{c1}$ invariant mass distribution
• ${\eta }_{\mathrm{c}}$- and $J/\psi$-isoscalar meson bound states in the hadro-charmonium picture
• Heavy Quark Spectroscopy -- Theory Overview
• Pseudovector meson with strangeness and closed-charm
• Possible heavy molecular states composed of a pair of excited charm-strange mesons
• Discovery potential for charmonium-like state Y(3940) by the meson photoproduction
• Search for B decays to final states with the eta_c meson
• Understanding the newly observed Y(4008) by Belle
• Search for $X(3872)$ and $X(3915)$ decay into ${\chi }_{c1}{\pi }^0$ in $B$ decays at Belle
• Role of the newly measured $B\to KD\bar{D}$ process to establish ${\chi }_{c0}(2P)$ state
• Dynamical study of the $X$(3915) as a molecular $D^{\ast }\overline{D^{\ast }}$ state in a quark model
• Spectroscopy of Mesons with Heavy Quarks
• Analysis of the mass and width of the $X^{\ast }(3860)$ with QCD sum rules
• Disentangling different structures in heavy-light four-quark states
• $XYZ$ particles at Belle
• Study on possible molecular states composed of ${\Lambda }_c\bar{D}$ (${\Lambda }_{b}B$) and ${\Sigma }_c\bar{D}$ (${\Sigma }_{b}B$) within the Bethe-Salpeter framework
• Can X(3915) be the tensor partner of the X(3872)?
• $Y(4626)$ in a chiral constituent quark model
• Search for $B^0\to J/\psi \varphi$
• $Qq\bar{Q}{\bar{q}}^{\prime }$ States in Chiral SU(3) Quark Model
• Charmonium possibility of X(3872)
• Mass of Y(3940) in Bethe-Salpeter equation for quarks
• Evidence supporting the existence of $P_c(4380{)}^{\pm }$ from the recent measurements of $B_s\to J/\psi p\bar{p}$
• Status and Prospects of Exotic Hadrons at Belle II
• Shedding light on the $X(3930)$ and $X(3960)$ states with the $B^{-}\to K^{-}J/\psi \omega$ reaction
• Y(3940) as a Mixed Charmonium-Molecule State
• The strong vertices of charmed mesons $D$, $D^{\ast }$ and charmonia $J/\psi$, ${\eta }_c$
• A Laplace Sum-Rules Analysis of Heavy Pseudoscalar ($J^{PC}=0^{-+}$) Hybrids
• Disclosing $D^{\ast }{\bar{D}}^{\ast }$ molecular states in the $B_c^{-}\to {\pi }^{-}J/\psi \omega$ decay
• Doubly charmed hexaquarks in the diquark picture
• ${\chi }_{c0}\omega$ production in $e^{+}{e}^{-}$ annihilation through $\psi (4160)$
• QCD Exotics
• Heavy Hadron Spectroscopy
• Masses of Open-Flavour Heavy-Light Hybrids from QCD Sum-Rules
• The study of possible molecular states of $D_s^{(\ast )}{D}_s^{(\ast )}$ and $B_s^{(\ast )}{B}_s^{(\ast )}$
• Search for the X(1812) in $B^{\pm }\to K^{\pm }\omega \varphi$
• Three body open flavor decays of higher charmonium and bottomonium
• Search for $C=+$ charmonium and XYZ states in $e^{+}{e}^{-}\to \gamma +H$ at BESIII
• Study of the hidden charm $D{\bar{D}}^{\ast }$ interactions in chiral effective field theory
• Summary of ICHEP 2004
• How can $X^{\pm }(5568)$ escape detection?
• Analysis of the vector meson transitions among the heavy quarkonium states
• Inclusive decays of ${\eta }_b$ into $S$- and $P$-wave charmonium states
• Systematics of fully heavy dibaryons
• The XYZ mesons: what they aren't
• Semileptonic decay of $B_c^{-}$ into $X(3930)$, $X(3940)$, $X(4160)$
• Search for B+ -> J/psi eta' K+ and B0 -> J/psi eta' Ks0 Decays
• Radiative decay of hadronic molecule state for quarks
• Comment on the X(3915) nonstandard hadron candidate
• Hadron Spectroscopy Results from Belle
• A study of meson-meson potential in the chiral quark model
• Hidden-Charm Tetraquarks in a Mixture Model: Coupled-Channel Analysis with $c\bar{c}$ and Hadronic Molecular Components
• New charmonium-like states
• The possible $B\pi$ molecular state and its radiative decay
• Charmonium resonances on the lattice
• Investigating different structures for the $X(3872)$
• Development of Bethe-Salpeter theory for dealing with unstable system
• Study of ${\chi }_{bJ}(2P)\to \omega {\rm Y}(1S)$ at Belle
• Correction to the energy spectrum of ${}^1{S}_0$ heavy quarkonia due to two-gluon annihilation effect
• The spectrum of charmed mesons from dynamical anisotropic lattices
• Hidden and open charm at Belle (and elsewhere)
• Calculation of mass and width of unstable molecular state using the developed Bethe-Salpeter theory
• Heavy Quarkonium Spectroscopy
• Proposed mixing between $2P$ and $1F$ wave charmonia
• Summary of Experimental Meson Physics
• Threshold effects in hadron spectrum: a new spectroscopy?
• Mass-Spectroscopy of [$bb][\bar{b}\bar{b}$] and [$bq][\bar{b}\bar{q}$] tetraquark states in a diquark-antidiquark formalism
• 16th International Conference in Quantum ChromoDynamics: Charmonium-like states at BaBar
• Hadronic Physics
• First measurement of the Q^2 distribution of X(3915) single-tag two-photon production
• Determination of the resonant parameters of chi_c0(3915) with global fit
• On the BELLE Charmonium States
• Study of ${\chi }_{b1,2}(2P)\to \omega {\rm Y}(1S)$ transitions in ${\rm Y}(3S)\to \gamma {\chi }_{b1,2}(2P)$ decays at BaBar
• Three-body final state interactions in $B^{+}\to D\bar{D}{K}^{+}$ decays
• Observation of the decay ${\chi }_{c1}(3872)\to J/\psi {\mu }^{+}{\mu }^{-}$
• Recent Results on Charmonia- and Bottomonia-like Particles at Belle