XYZ spectroscopy at electron-hadron facilities: Exclusive processes

Abstract

The next generation of electron-hadron facilities has the potential for significantly improving our understanding of exotic hadrons. The XYZ states have not been seen in photon-induced reactions so far. Their observation in such processes would provide an independent confirmation of their existence and offer new insights into their internal structure. Based on the known experimental data and the well-established quarkonium and Regge phenomenology, we give estimates for the exclusive cross sections of several XYZ states. For energies near threshold we expect cross sections of few nanobarns for the Zc(3900)+ and upwards of tens of nanobarn for the X(3872), which are well within reach of new facilities.

arXiv comment16 pages, 10 figures, 8 tables. New section for Primakoff X(3872) production; revised estimates for the Y(4260) cross section, in light of HERA data

References in corpus (77)

• Hadronic molecules
• The $XYZ$ states: experimental and theoretical status and perspectives
• Multiquark Resonances
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Observation of two charged bottomonium-like resonances in Y(5S) decays
• Determination of the X(3872) meson quantum numbers
• Exclusive photoproduction of J/psi mesons at HERA
• Elastic J/Psi Production at HERA
• Threshold cusps and triangle singularities in hadronic reactions
• Excited and exotic charmonium spectroscopy from lattice QCD
• Precise measurement of the $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ cross section at center-of-mass energies from 3.77 to 4.60 GeV
• First measurement of near-threshold J/$\psi$ exclusive photoproduction off the proton
• Confirmation of the Y(4260) Resonance Production in ISR
• Bounds on the width, mass difference and other properties of X(3872) --> pi+pi-J/psi decays
• Evidence of Two Resonant Structures in $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{h}_c$
• Suppressed decay into open charm for the Y(4260) being an hybrid
• $QQ\bar{Q}\bar{Q}$ states: masses, production, and decays
• Formation of hidden-charm pentaquarks in photon-nucleon collisions
• A non-relativistic model for the $[cc][\bar{c}\bar{c}]$ tetraquark
• Spectrum of fully-heavy tetraquarks from a diquark+antidiquark perspective
• Dispersive analysis of omega --> 3pi and phi --> 3pi decays
• An isobar model for eta photo- and electroproduction on the nucleon
• Study of the lineshape of the ${\chi }_{c1}(3872)$ state
• Measurement of the Dipion Mass Spectrum in X(3872) -> J/Psi Pi+ Pi- Decays
• Photoproduction of hidden charm pentaquark states $P_c^{+}(4380)$ and $P_c^{+}(4450)$
• Photoproduction of axion-like particles
• Determination of the $\psi (3770)$, $\psi (4040)$, $\psi (4160)$ and $\psi (4415)$ resonance parameters
• Quantum numbers of the $X(3872)$ state and orbital angular momentum in its ${\rho }^{0}J\psi$ decay
• Pion-nucleon scattering in a meson-exchange model
• Photoproduction of Exotic Baryon Resonances
• Measurement of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\psi (3686)$ from 4.008 to 4.600$\sim$GeV and observation of a charged structure in the ${\pi }^{\pm }\psi (3686)$ mass spectrum
• Study of the reaction e^{+}e^{-} -->J/psiπ^{+}π^{-} via initial-state radiation at BaBar
• Determination of spin and parity of the $Z_c(3900)$
• $Z_c(3900)$: what has been really seen?
• Photoproduction of charm near threshold
• Evidence of a resonant structure in the $e^{+}{e}^{-}\to {\pi }^{+}{D}^0{D}^{\ast -}$ cross section between 4.05 and 4.60 GeV
• A study of $cc\bar{c}\bar{c}$ tetraquark decays in 4 muons and in $D^{(\ast )}{\bar{D}}^{(\ast )}$ at LHC
• Diffractive Photoproduction of Psi(2S) Mesons at HERA
• Heavy Quarkonium Hybrids: Spectrum, Decay and Mixing
• Studying the P_c(4450) resonance in J/psi photoproduction off protons
• Amplitude analysis and the nature of the Zc(3900)
• Amplitude analysis of e+e- => Y(nS)pi+pi- at sqrt(s)=10.865 GeV
• Remarks on the $P_c$ structures and triangle singularities
• Deciphering the mechanism of near-threshold $J/\psi$ photoproduction
• 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
• Cross section measurements of $e^{+}{e}^{-}\to \omega {\chi }_{c0}$ from $\sqrt{s}=$4.178 to 4.278 GeV
• Remarks on the quantum numbers of X(3872) from the invariant mass distributions of the rho J/psi and omega J/psi final states
• Chiral Lagrangians for Baryons coupled to massive Spin-1 Fields
• Determining the upper limit of Gamma_{ee} for the Y(4260)
• Study of the ${\psi }_2(3823)$ and ${\chi }_{c1}(3872)$ states in $B^{+}\to \left(J\psi {\pi }^{+}{\pi }^{-}\right)K^{+}$ decays
• Confronting pentaquark photoproduction with new LHCb observations
• Study of open-charm decays and radiative transitions of the X(3872)
• Exclusive ${\pi }^0$ electroproduction at $W>2$ GeV with CLAS
• Observation of the $Y(4220)$ and $Y(4360)$ in the process $e^{+}{e}^{-}\to \eta J/\psi$
• Determination of the absolute branching fractions of X(3872) decays
• Charged charmoniumlike state $Z_c(3900{)}^{\pm }$ via meson photoproduction
• Double Polarization Observables in Pentaquark Photoproduction
• Search for exclusive photoproduction of Z${}_c^{\pm }$(3900) at COMPASS
• Evidence that the Pomeron transforms as a non-conserved vector current
• Search for muoproduction of $X(3872)$ at COMPASS and indication of a new state $\tilde{X}(3872)$
• Photoproduction of hidden-bottom pentaquark and related topics
• Measurements of the Absolute Branching Fractions of $B^{\pm }\to K^{\pm }{X}_{c\bar{c}}$
• Photo-production of psi' Mesons at HERA
• Charmonium meson and hybrid radiative transitions
• Vector Meson Photoproduction with a Linearly Polarized Beam
• Photoproduction of the charged charmoniumlike $Z_c^{+}(4200)$
• Photoproduction of Z(4430) through mesonic Regge trajectories exchange
• $Z_c(4430)$ and $Z_c(4200)$ as triangle singularities
• Exclusive Meson Photo- and Electro-production, a Window on the Structure of Hadronic Matter
• Strong Couplings of X(3872)_{J=1,2} and a New Look at J/psi Suppression in Heavy Ion Collisions
• Systematic study of octet-baryon electromagnetic form factors in covariant chiral perturbation theory
• On the Spin of the X(3872)
• Inclusive Radiative $J/\psi$ Decays
• Production of $X(3872)$ Accompanied by a Soft Pion at Hadron Colliders
• Global analysis of charge exchange meson production at high energies
• Inclusive Radiative psi(2S) Decays

Cited by in corpus (27)

• Electron-Ion Collider in China
• 50 Years of Quantum Chromodynamics
• Precision Studies of QCD in the Low Energy Domain of the EIC
• The Present and Future of QCD
• $0^{+}$ fully-charmed tetraquark states
• Insights into the inner structures of the fully charmed tetraquark state $X(6900)$
• Novel approaches in Hadron Spectroscopy
• A combined analysis of the $Z_c(3900)$ and the $Z_{cs}(3985)$ exotic states
• Hunting for tetraquarks in ultra-pheripheral heavy ion collisions
• Photoproduction of strange hidden-charm and hidden-bottom states
• Understanding the $0^{++}$ and $2^{++}$ charmonium(-like) states near 3.9 GeV
• Systematic analysis of the proton mass radius based on photoproduction of vector charmoniums
• $D{\bar{D}}^{\ast }$ scattering and ${\chi }_{c1}(3872)$ in nuclear matter
• Exotic tetraquarks at the HL-LHC with JETHAD: A high-energy viewpoint
• The ${\psi }^{(\ast )}p$ scattering length based on near-threshold charmoniums photoproduction
• Semi-inclusive lepto-production of hidden-charm exotic hadrons
• Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom
• XYZ spectroscopy at electron-hadron facilities II: Semi-inclusive processes with pion exchange
• Semi-inclusive electroproduction of hidden-charm and double-charm hadronic molecules
• Analysis of the contribution of the quantum anomaly energy to the proton mass
• Probing charmonium-like XYZ states in hadron-hadron ultraperipheral collisions and electron-proton scattering
• Probing the structure of $X(3872)$ in photoproduction
• Novel correlated $D^0\overline{D}{}^0$ systems for $c/b$ physics and tests of $T/CPT$
• XYZ spectroscopy at electron-hadron facilities III: Semi-inclusive processes with vector exchanges
• Photoproduction of the $X(3872)$ beyond vector meson dominance: the open-charm coupled-channel mechanism
• Absorption of $\psi (2S)$ mesons in nuclei
• Absorption of 1$P$-wave heavy charmonium ${\chi }_{c1}(1P)$ in nuclei