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Title: X Y Z 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 nanobarns for the X(3872), which are well within reach of new facilities.

Authors:
; ; ORCiD logo; ; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP); National Autonomous Univ. of Mexico; Consejo Nacional de Ciencia y Tecnología (CONACYT); Comunidad Autónoma de Madrid; Ministry of Education (Spain)
OSTI Identifier:
1734420
Alternate Identifier(s):
OSTI ID: 1734514
Report Number(s):
JLAB-THY-20-3231; DOE/OR/23177-5091; arXiv:2008.01001
Journal ID: ISSN 2470-0010; PRVDAQ; 114010
Grant/Contract Number:  
FG02-87ER40365; AC05-06OR23177; IA101819; A1-S-21389; 2018-T1/TIC-10313; PID2019-106080GB-C21
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 102 Journal Issue: 11; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Albaladejo, M., Blin, A. N. Hiller, Pilloni, A., Winney, D., Fernández-Ramírez, C., Mathieu, V., Szczepaniak, A., and Joint Physics Analysis Center. X Y Z spectroscopy at electron-hadron facilities: Exclusive processes. United States: N. p., 2020. Web. https://doi.org/10.1103/PhysRevD.102.114010.
Albaladejo, M., Blin, A. N. Hiller, Pilloni, A., Winney, D., Fernández-Ramírez, C., Mathieu, V., Szczepaniak, A., & Joint Physics Analysis Center. X Y Z spectroscopy at electron-hadron facilities: Exclusive processes. United States. https://doi.org/10.1103/PhysRevD.102.114010
Albaladejo, M., Blin, A. N. Hiller, Pilloni, A., Winney, D., Fernández-Ramírez, C., Mathieu, V., Szczepaniak, A., and Joint Physics Analysis Center. Mon . "X Y Z spectroscopy at electron-hadron facilities: Exclusive processes". United States. https://doi.org/10.1103/PhysRevD.102.114010.
@article{osti_1734420,
title = {X Y Z spectroscopy at electron-hadron facilities: Exclusive processes},
author = {Albaladejo, M. and Blin, A. N. Hiller and Pilloni, A. and Winney, D. and Fernández-Ramírez, C. and Mathieu, V. and Szczepaniak, A. and Joint Physics Analysis Center},
abstractNote = {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 nanobarns for the X(3872), which are well within reach of new facilities.},
doi = {10.1103/PhysRevD.102.114010},
journal = {Physical Review D},
number = 11,
volume = 102,
place = {United States},
year = {2020},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.102.114010

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Works referenced in this record:

Evidence of a Resonant Structure in the e + e π + D 0 D * Cross Section between 4.05 and 4.60 GeV
journal, March 2019


Photoproduction of Z ( 4430 ) through mesonic Regge trajectories exchange
journal, June 2011


Strong QCD from Hadron Structure Experiments
journal, August 2020

  • Brodsky, S. J.; Burkert, V. D.; Carman, D. S.
  • International Journal of Modern Physics E, Vol. 29, Issue 08
  • DOI: 10.1142/S0218301320300064

Threshold cusps and triangle singularities in hadronic reactions
journal, May 2020

  • Guo, Feng-Kun; Liu, Xiao-Hai; Sakai, Shuntaro
  • Progress in Particle and Nuclear Physics, Vol. 112
  • DOI: 10.1016/j.ppnp.2020.103757

Q Q Q ¯ Q ¯ states: Masses, production, and decays
journal, February 2017


Evidence that the Pomeron transforms as a non-conserved vector current
journal, October 1999


Determination of the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>ψ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>3770</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>, <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>ψ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>4040</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>, <mml:math altimg="si3.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>ψ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>4160</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math> and <mml:math altimg="si4.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>ψ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>4415</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math> resonance parameters
journal, February 2008


Exclusive meson photo- and electro-production, a window on the structure of hadronic matter
journal, March 2020


Amplitude analysis of e + e ϒ ( n S ) π + π at s = 10.866 GeV
journal, April 2015


Photoproduction of charm near threshold
journal, January 2001


Vector meson photoproduction with a linearly polarized beam
journal, May 2018


Measurements of ψ(2S) and X(3872) → J/ψπ + π − production in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector
journal, January 2017


Formation of hidden-charm pentaquarks in photon-nucleon collisions
journal, August 2015


Deciphering the mechanism of near-threshold $$J/\psi $$ photoproduction
journal, November 2020


Exclusive π 0 electroproduction at W > 2  GeV with CLAS
journal, August 2014


Spin of the X ( 3872 )
journal, September 2012


Studying the P c ( 4450 ) resonance in J / ψ photoproduction off protons
journal, August 2016


Pion-nucleon scattering in a meson-exchange model
journal, October 2003


Quantum numbers of the X ( 3872 ) state and orbital angular momentum in its ρ 0 J / ψ decay
journal, July 2015


Diffractive photoproduction of ψ(2S) mesons at HERA
journal, August 2002


The X Y Z states: Experimental and theoretical status and perspectives
journal, August 2020


Charmonium meson and hybrid radiative transitions
journal, June 2014


Publisher's Note: Exclusive π 0 electroproduction at W > 2 GeV with CLAS [Phys. Rev. C 90, 025205 (2014)]
journal, September 2014


Charged charmoniumlike state Z c ( 3900 ) ± via meson photoproduction
journal, December 2013


Suppressed decay into open charm for the <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>Y</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>4260</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math> being an hybrid
journal, December 2005


Study of the reaction e + e J / ψ π + π via initial-state radiation at BABAR
journal, September 2012


First Measurement of Near-Threshold J / ψ Exclusive Photoproduction off the Proton
journal, August 2019


Determination of the absolute branching fractions of X ( 3872 ) decays
journal, November 2019


Systematic study of octet-baryon electromagnetic form factors in covariant chiral perturbation theory
journal, November 2017


Photoproduction of the ψ Particles
journal, August 1975


Production of X ( 3872 ) accompanied by a soft pion at hadron colliders
journal, November 2019


Experimental Investigation of Pion Electroproduction
journal, February 1963


Inclusive radiative J / ψ decays
journal, August 2008


Dispersive analysis of ω→3π and ϕ→3π decays
journal, May 2012


Confronting pentaquark photoproduction with new LHCb observations
journal, September 2019


Confirmation of the Y ( 4260 ) resonance production in initial state radiation
journal, November 2006


Spectrum of fully-heavy tetraquarks from a diquark+antidiquark perspective
journal, October 2020


Hadronic molecules
journal, February 2018


Photoproduction of the charged charmoniumlike Z c + ( 4200 )
journal, November 2015


Nuclear charge- and magnetization-density-distribution parameters from elastic electron scattering
journal, November 1974


Exclusive photoproduction of $J/\psi$ mesons at HERA
journal, July 2002


Photo-production of ψ(2S) mesons at HERA
journal, March 1998


Photoproduction of exotic baryon resonances
journal, January 2016


Nonstandard heavy mesons and baryons: Experimental evidence
journal, February 2018


Review of Particle Physics
journal, August 2020

  • Zyla, P. A.; Barnett, R. M.; Beringer, J.
  • Progress of Theoretical and Experimental Physics, Vol. 2020, Issue 8
  • DOI: 10.1093/ptep/ptaa104

Determining the upper limit of <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msub><mml:mi>Γ</mml:mi><mml:mrow><mml:mi>e</mml:mi><mml:mi>e</mml:mi></mml:mrow></mml:msub></mml:math> for the <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>Y</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>4260</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>
journal, September 2006


Inclusive radiative ψ ( 2 S ) decays
journal, October 2009


Measurements of the Absolute Branching Fractions of B ± K ± X c c ¯
journal, April 2020


Bounds on the width, mass difference and other properties of X ( 3872 ) π + π J / ψ decays
journal, September 2011


Strong couplings of X ( 3872 ) J = 1 , 2 and a new look at J / ψ suppression in heavy ion collisions
journal, July 2011


Regge phenomenology
journal, December 1977


Precise Measurement of the e + e π + π J / ψ Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV
journal, March 2017


Evidence of Two Resonant Structures in e + e π + π h c
journal, March 2017


Remarks on the Pc structures and triangle singularities
journal, October 2016

  • Guo, Feng-Kun; Meißner, Ulf-G.; Nieves, Juan
  • The European Physical Journal A, Vol. 52, Issue 10
  • DOI: 10.1140/epja/i2016-16318-4

Observation of a Narrow Pentaquark State, P c ( 4312 ) + , and of the Two-Peak Structure of the P c ( 4450 ) +
journal, June 2019


Excited and exotic charmonium spectroscopy from lattice QCD
journal, July 2012

  • Liu, Liuming; Moir, Graham; Peardon, Michael
  • Journal of High Energy Physics, Vol. 2012, Issue 7
  • DOI: 10.1007/JHEP07(2012)126

Selection Rules for the Dematerialization of a Particle into Two Photons
journal, January 1950


Amplitude analysis and the nature of the Z c (3900)
journal, September 2017


Photoproduction of Axionlike Particles
journal, August 2019


Comment on the ???J/??? decay
journal, March 1981

  • Novikov, V. A.; Shifman, M. A.
  • Zeitschrift f�r Physik C Particles and Fields, Vol. 8, Issue 1
  • DOI: 10.1007/BF01429829

Measurement of the $\psi(2S)$ to $J/\psi$ cross section ratio in photoproduction with the ZEUS detector at HERA
conference, August 2019

  • Grzelak, Grzegorz
  • Proceedings of The 39th International Conference on High Energy Physics — PoS(ICHEP2018)
  • DOI: 10.22323/1.340.0921

Search for muoproduction of X(3872) at COMPASS and indication of a new state X ˜ ( 3872 )
journal, August 2018


Chiral Lagrangians for Baryons Coupled to Massive Spin-1 Fields
journal, November 1996


Observation of the Y ( 4220 ) and Y ( 4390 ) in the process e + e η J / ψ
journal, August 2020


Photoproduction of hidden charm pentaquark states P c + ( 4380 ) and P c + ( 4450 )
journal, August 2015


Measurement of the Dipion Mass Spectrum in X ( 3872 ) J / ψ π + π Decays
journal, March 2006


Search for exclusive photoproduction of Z c ± (3900) at COMPASS
journal, March 2015


Observation of Two Charged Bottomoniumlike Resonances in Υ ( 5 S ) Decays
journal, March 2012


An isobar model for η photo- and electroproduction on the nucleon
journal, March 2002


Photoproduction of hidden-bottom pentaquark and related topics
journal, April 2020


Determination of the Spin and Parity of the Z c ( 3900 )
journal, August 2017


Measuring Quantum-Chromodynamic Anomalies in Hadronic Transitions between Quarkonium States
journal, September 1980


Cross section measurements of e + e ω χ c 0 from s = 4.178 to 4.278 GeV
journal, May 2019


Dispersive analysis of ω / ϕ 3 π , π γ *
journal, May 2015


Triangle singularities and XYZ quarkonium peaks
journal, July 2015


A Plan for Electron Ion Collider in China
conference, November 2018

  • Chen, Xurong
  • Proceedings of XXVI International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS2018)
  • DOI: 10.22323/1.316.0170

A non-relativistic model for the $[cc][\bar{c}\bar{c}]$ tetraquark
journal, January 2019


Z(3900): What has been really seen?
journal, April 2016


Global analysis of charge exchange meson production at high energies
journal, August 2018


Determination of the X ( 3872 ) Meson Quantum Numbers
journal, May 2013


Electron-Ion Collider: The next QCD frontier: Understanding the glue that binds us all
journal, September 2016


A study of c c c ¯ c ¯ tetraquark decays in 4 muons and in D ( ) D ¯ ( ) at LHC
journal, December 2020


Multiquark resonances
journal, January 2017


Study of Open-Charm Decays and Radiative Transitions of the X (3872)
journal, June 2020


Study of the ψ2(3823) and χc1(3872) states in B+ → (J/ψπ+π−)K+ decays
journal, August 2020

  • Aaij, R.; Abellán Beteta, C.; Ackernley, T.
  • Journal of High Energy Physics, Vol. 2020, Issue 8
  • DOI: 10.1007/JHEP08(2020)123

Double polarization observables in pentaquark photoproduction
journal, August 2019


Study of the lineshape of the χ c 1 ( 3872 ) state
journal, November 2020