Exotic hadrons with heavy flavors: X, Y, Z, and related states

2016/03/30 by Atsushi Hosaka, Toru Iijima, Kenkichi Miyabayashi +2 · 6 citations
Physics and Astronomy · #Charm (quantum number) #Chiral symmetry #Cold Atom Physics and Bose-Einstein Condensates #Current (fluid) #Exotic hadron #Hadron #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #Symmetry (geometry) #hep-ex #hep-ph

paper · pdf · doi:10.1093/ptep/ptw045

published as Prog. Theor. Exp. Phys. 2016, 062C01 · 85 pages

arxiv created 2016/03/30 · openalex publication_date 2016/06/01 · openalex created_date 2016/06/24 · arxiv updated 2019/08/07 · openalex updated_date 2026/08/05

Abstract

Abstract In the past decade, exotic hadrons with charm and bottom flavors have been extensively studied both in experiments and in theories. In this review, we provide topical discussions by selecting X,Y,Z particles, to which Belle has made important contributions. These are X(3872), Y(4260), Z_c(4430)⁺, Z_c(3900)⁺, Z_b(10610)⁺, and Z_b(10650)⁺. Based on the current experimental observations, we discuss these states with emphasis on the hadronic molecule whose dynamics is governed by chiral symmetry and heavy-quark symmetry of QCD. We also mention briefly various interpretations and some theoretical predictions for the as yet undiscovered exotic hadrons.

Citations

• Observation of thehc(1P)Usinge+e−Collisions above theDD¯Threshold
• Zb(10610)±andZb(10650)±as theB*B¯andB*B¯*molecular states
• Observation ofe+e−→γX(3872)at BESIII
• Observation and Properties of theX(3872)Decaying toJ/ψπ+π−inpp¯Collisions ats=1.96 TeV
• Z+(4430)as aD1′D*(D1D*) molecular state
• X(3872)andY(4140)using diquark-antidiquark operators with lattice QCD
• Ab Initio Determination of Light Hadron Masses
• Observation of a Resonancelike Structure in theπ+−ψ′Mass Distribution in ExclusiveB→Kπ+−ψ′Decays
• Heavy quark symmetry predictions for weakly boundB-meson molecules
• Excited heavy tetraquarks with hidden charm
• New interpretation for theDs2*(2573)and the prediction of novel exotic charmed mesons
• Decays ofZ+bandZ′ +bas hadronic molecules
• IsZ+(4430)a loosely bound molecular state?
• Effective-field theories for heavy quarkonium
• Potential NRQCD: an effective theory for heavy quarkonium
• Interplay of quark and meson degrees of freedom in a near-threshold resonance
• Chiral perturbation theory to one loop
• Exotic nuclei with open heavy flavor mesons
• The possible interpretations of Y(4260)
• One explanation for the exotic state Y(4260)
• Diquark-antidiquark states with hidden or open charm and the nature ofX(3872)
• Reparameterisation invariance constraints on heavy particle effective field theories
• On Nuclear Reactions Occuring in Very Hot STARS.I. the Synthesis of Elements from Carbon to Nickel.
• Evolution of Nuclear Shells due to the Tensor Force
• Dyson-Schwinger equations and their application to hadronic physics
• Analysis of theX(3872),Zc(3900), andZc(3885)as axial-vector tetraquark states with QCD sum rules
• Z(4430)and a new paradigm for spin interactions in tetraquarks
• Heavy quark spin symmetry partners of theX(3872)
• Chiral perturbation theory: Expansions in the mass of the strange quark
• Deriving the existence ofBB¯*bound states from theX(3872)and heavy quark symmetry
• Precision Measurement of theX(3872)Mass inJ/ψπ+π−Decays
• Observation of an enhancement in e⁺e^- → Υ(1S)π⁺ π^-, Υ(2S)π⁺ π^-, and Υ(3S)π⁺ π^- production around √(s)=10.89 GeV at Belle
• Color superconductivity in dense quark matter
• Search for theZ(4430)−atBABAR
• Observation of the Resonant Character of theZ(4430)−State
• Scaling behavior of the quark propagator in full QCD
• Achievements of KEKB
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Chiral Symmetry of Baryons
• A schematic model of baryons and mesons
• Charmonium
• Phenomenological Lagrangians
• Big-Bang Nucleosynthesis

Cited by

• Width of a two-body coupled-channel resonance
• A review of the open charm and open bottom systems
• K⁎ mesons with hidden charm arising from KX(3872) and KZc(3900) dynamics
• Heavy-hadron molecular spectrum from light-meson exchange saturation
• D⁺D^- hadronic atom and its production in pp and pp collisions
• Spectrum of the hidden-bottom and the hidden-charm-strange exotics in the dynamical diquark model