X Y Z spectroscopy at electron-hadron facilities: Exclusive processes

Albaladejo, M.; Blin, A. N. Hiller; Pilloni, A.; Winney, D.; Fernández-Ramírez, C.; Mathieu, V.; Szczepaniak, A.

doi:10.1103/PhysRevD.102.114010

Title: $X Y Z$ spectroscopy at electron-hadron facilities: Exclusive processes

Journal Article · 06 December 2020 · Physical Review. D.

DOI: https://doi.org/10.1103/PhysRevD.102.114010 · OSTI ID:1734420

Albaladejo, M.; Blin, A. N. Hiller;

; Winney, D.; Fernández-Ramírez, C.; Mathieu, V.; Szczepaniak, A.

Not Available

View Journal Article

Cite

Export

Save

Sponsoring Organization:: 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)

Grant/Contract Number:: FG02-87ER40365; AC05-06OR23177

OSTI ID:: 1734420

Alternate ID(s):: OSTI ID: 1734514

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 11 Vol. 102; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (95)

Spectrum of fully-heavy tetraquarks from a diquark+antidiquark perspective Bedolla, M. A.; Ferretti, J.; Roberts, C. D. The European Physical Journal C, Vol. 80, Issue 11 https://doi.org/10.1140/epjc/s10052-020-08579-3	journal	October 2020
Remarks on the Pc structures and triangle singularities Guo, Feng-Kun; Meißner, Ulf-G.; Nieves, Juan The European Physical Journal A, Vol. 52, Issue 10 https://doi.org/10.1140/epja/i2016-16318-4	journal	October 2016
Z(3900): What has been really seen? Albaladejo, Miguel; Guo, Feng-Kun; Hidalgo-Duque, Carlos Physics Letters B, Vol. 755 https://doi.org/10.1016/j.physletb.2016.02.025	journal	April 2016
Publisher's Note: Exclusive π 0 electroproduction at W > 2 GeV with CLAS [Phys. Rev. C 90, 025205 (2014)] Bedlinskiy, I.; Kubarovsky, V.; Niccolai, S. Physical Review C, Vol. 90, Issue 3 https://doi.org/10.1103/PhysRevC.90.039901	journal	September 2014
Threshold cusps and triangle singularities in hadronic reactions Guo, Feng-Kun; Liu, Xiao-Hai; Sakai, Shuntaro Progress in Particle and Nuclear Physics, Vol. 112 https://doi.org/10.1016/j.ppnp.2020.103757	journal	May 2020
Spin of the X ( 3872 ) Faccini, R.; Piccinini, F.; Pilloni, A. Physical Review D, Vol. 86, Issue 5 https://doi.org/10.1103/PhysRevD.86.054012	journal	September 2012
A Plan for Electron Ion Collider in China Chen, Xurong Proceedings of XXVI International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS2018) https://doi.org/10.22323/1.316.0170	conference	November 2018
Strong QCD from Hadron Structure Experiments Brodsky, S. J.; Burkert, V. D.; Carman, D. S. International Journal of Modern Physics E, Vol. 29, Issue 08 https://doi.org/10.1142/S0218301320300064	journal	August 2020
Determination of the Spin and Parity of the Z c ( 3900 ) Ablikim, M.; Achasov, M. N.; Ai, X. C. Physical Review Letters, Vol. 119, Issue 7 https://doi.org/10.1103/PhysRevLett.119.072001	journal	August 2017
Search for muoproduction of X(3872) at COMPASS and indication of a new state X ˜ ( 3872 ) Aghasyan, M.; Akhunzyanov, R.; Alexeev, M. G. Physics Letters B, Vol. 783 https://doi.org/10.1016/j.physletb.2018.07.008	journal	August 2018
Confirmation of the Y ( 4260 ) resonance production in initial state radiation He, Q.; Insler, J.; Muramatsu, H. Physical Review D, Vol. 74, Issue 9 https://doi.org/10.1103/PhysRevD.74.091104	journal	November 2006
Measurement of the $\psi(2S)$ to $J/\psi$ cross section ratio in photoproduction with the ZEUS detector at HERA Grzelak, Grzegorz Proceedings of The 39th International Conference on High Energy Physics — PoS(ICHEP2018) https://doi.org/10.22323/1.340.0921	conference	August 2019
Exclusive meson photo- and electro-production, a window on the structure of hadronic matter Laget, J. M. Progress in Particle and Nuclear Physics, Vol. 111 https://doi.org/10.1016/j.ppnp.2019.103737	journal	March 2020
Double polarization observables in pentaquark photoproduction Winney, D.; Fanelli, C.; Pilloni, A. Physical Review D, Vol. 100, Issue 3 https://doi.org/10.1103/PhysRevD.100.034019	journal	August 2019
Regge phenomenology Irving, A. C.; Worden, R. P. Physics Reports, Vol. 34, Issue 3 https://doi.org/10.1016/0370-1573(77)90010-2	journal	December 1977
Cross section measurements of e + e − → ω χ c 0 from s = 4.178 to 4.278 GeV Ablikim, M.; Achasov, M. N.; Adlarson, P. Physical Review D, Vol. 99, Issue 9 https://doi.org/10.1103/PhysRevD.99.091103	journal	May 2019
Evidence that the Pomeron transforms as a non-conserved vector current Close, Frank E.; Schuler, Gerhard A. Physics Letters B, Vol. 464, Issue 3-4 https://doi.org/10.1016/S0370-2693(99)00875-8	journal	October 1999
Chiral Lagrangians for Baryons Coupled to Massive Spin-1 Fields Borasoy, B.; MeißNer, Ulf-G. International Journal of Modern Physics A, Vol. 11, Issue 29 https://doi.org/10.1142/S0217751X96002376	journal	November 1996
Measurements of the Absolute Branching Fractions of B ± → K ± X c c ¯ Lees, J. P.; Poireau, V.; Tisserand, V. Physical Review Letters, Vol. 124, Issue 15 https://doi.org/10.1103/PhysRevLett.124.152001	journal	April 2020
Formation of hidden-charm pentaquarks in photon-nucleon collisions Kubarovsky, V.; Voloshin, M. B. Physical Review D, Vol. 92, Issue 3 https://doi.org/10.1103/PhysRevD.92.031502	journal	August 2015
Dispersive analysis of ω→3π and ϕ→3π decays Niecknig, Franz; Kubis, Bastian; Schneider, Sebastian P. The European Physical Journal C, Vol. 72, Issue 5 https://doi.org/10.1140/epjc/s10052-012-2014-1	journal	May 2012
A study of c c c ¯ c ¯ tetraquark decays in 4 muons and in D ( ⁎ ) D ¯ ( ⁎ ) at LHC Becchi, C.; Ferretti, J.; Giachino, A. Physics Letters B, Vol. 811 https://doi.org/10.1016/j.physletb.2020.135952	journal	December 2020
Amplitude analysis and the nature of the Z c (3900) Pilloni, A.; Fernández-Ramírez, C.; Jackura, A. Physics Letters B, Vol. 772 https://doi.org/10.1016/j.physletb.2017.06.030	journal	September 2017
Hadronic molecules Guo, Feng-Kun; Hanhart, Christoph; Meißner, Ulf-G. Reviews of Modern Physics, Vol. 90, Issue 1 https://doi.org/10.1103/RevModPhys.90.015004	journal	February 2018
An isobar model for η photo- and electroproduction on the nucleon Chiang, Wen-Tai; Yang, Shin Nan; Tiator, Lothar Nuclear Physics A, Vol. 700, Issue 1-2 https://doi.org/10.1016/S0375-9474(01)01325-2	journal	March 2002
Charmonium meson and hybrid radiative transitions Guo, Peng; Yépez-Martínez, Tochtli; Szczepaniak, Adam P. Physical Review D, Vol. 89, Issue 11 https://doi.org/10.1103/PhysRevD.89.116005	journal	June 2014
Photoproduction of charm near threshold Brodsky, S. J.; Chudakov, E.; Hoyer, P. Physics Letters B, Vol. 498, Issue 1-2 https://doi.org/10.1016/S0370-2693(00)01373-3	journal	January 2001
Photoproduction of Axionlike Particles Aloni, Daniel; Fanelli, Cristiano; Soreq, Yotam Physical Review Letters, Vol. 123, Issue 7 https://doi.org/10.1103/PhysRevLett.123.071801	journal	August 2019
Systematic study of octet-baryon electromagnetic form factors in covariant chiral perturbation theory Hiller Blin, A. N. Physical Review D, Vol. 96, Issue 9 https://doi.org/10.1103/PhysRevD.96.093008	journal	November 2017
Measuring Quantum-Chromodynamic Anomalies in Hadronic Transitions between Quarkonium States Voloshin, M.; Zakharov, V. Physical Review Letters, Vol. 45, Issue 9 https://doi.org/10.1103/PhysRevLett.45.688	journal	September 1980
Electron-Ion Collider: The next QCD frontier: Understanding the glue that binds us all Accardi, A.; Albacete, J. L.; Anselmino, M. The European Physical Journal A, Vol. 52, Issue 9 https://doi.org/10.1140/epja/i2016-16268-9	journal	September 2016
Evidence of Two Resonant Structures in e + e − → π + π − h c Ablikim, M.; Achasov, M. N.; Ahmed, S. Physical Review Letters, Vol. 118, Issue 9 https://doi.org/10.1103/PhysRevLett.118.092002	journal	March 2017
Bounds on the width, mass difference and other properties of X ( 3872 ) → π + π − J / ψ decays Choi, S. -K.; Olsen, S. L.; Trabelsi, K. Physical Review D, Vol. 84, Issue 5 https://doi.org/10.1103/PhysRevD.84.052004	journal	September 2011
Studying the P c ( 4450 ) resonance in J / ψ photoproduction off protons Blin, A. N. Hiller; Fernández-Ramírez, C.; Jackura, A. Physical Review D, Vol. 94, Issue 3 https://doi.org/10.1103/PhysRevD.94.034002	journal	August 2016
Photoproduction of hidden charm pentaquark states P c + ( 4380 ) and P c + ( 4450 ) Wang, Qian; Liu, Xiao-Hai; Zhao, Qiang Physical Review D, Vol. 92, Issue 3 https://doi.org/10.1103/PhysRevD.92.034022	journal	August 2015
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 Aaboud, M.; Aad, G.; Abbott, B. Journal of High Energy Physics, Vol. 2017, Issue 1 https://doi.org/10.1007/JHEP01(2017)117	journal	January 2017
Observation of a Narrow Pentaquark State, P c ( 4312 ) + , and of the Two-Peak Structure of the P c ( 4450 ) + Aaij, R.; Abellán Beteta, C.; Adeva, B. Physical Review Letters, Vol. 122, Issue 22 https://doi.org/10.1103/PhysRevLett.122.222001	journal	June 2019
Study of the reaction e + e − → J / ψ π + π − via initial-state radiation at BABAR Lees, J. P.; Poireau, V.; Tisserand, V. Physical Review D, Vol. 86, Issue 5 https://doi.org/10.1103/PhysRevD.86.051102	journal	September 2012
Review of Particle Physics Zyla, P. A.; Barnett, R. M.; Beringer, J. Progress of Theoretical and Experimental Physics, Vol. 2020, Issue 8 https://doi.org/10.1093/ptep/ptaa104	journal	August 2020
Determination of the ψ(3770), ψ(4040), ψ(4160) and ψ(4415) resonance parameters Ablikim, M.; Bai, J. Z.; Ban, Y. Physics Letters B, Vol. 660, Issue 4 https://doi.org/10.1016/j.physletb.2007.11.100	journal	February 2008
Determination of the X ( 3872 ) Meson Quantum Numbers Aaij, R.; Abellan Beteta, C.; Adeva, B. Physical Review Letters, Vol. 110, Issue 22 https://doi.org/10.1103/PhysRevLett.110.222001	journal	May 2013
Comment on the ???J/??? decay Novikov, V. A.; Shifman, M. A. Zeitschrift f�r Physik C Particles and Fields, Vol. 8, Issue 1 https://doi.org/10.1007/BF01429829	journal	March 1981
Photoproduction of Z ( 4430 ) through mesonic Regge trajectories exchange Galatà, Giuseppe Physical Review C, Vol. 83, Issue 6 https://doi.org/10.1103/PhysRevC.83.065203	journal	June 2011
Q Q Q ¯ Q ¯ states: Masses, production, and decays Karliner, Marek; Nussinov, Shmuel; Rosner, Jonathan L. Physical Review D, Vol. 95, Issue 3 https://doi.org/10.1103/PhysRevD.95.034011	journal	February 2017
Diffractive photoproduction of ψ(2S) mesons at HERA Adloff, C.; Andreev, V.; Andrieu, B. Physics Letters B, Vol. 541, Issue 3-4 https://doi.org/10.1016/S0370-2693(02)02275-X	journal	August 2002
Inclusive radiative J / ψ decays Besson, D.; Pedlar, T. K.; Cronin-Hennessy, D. Physical Review D, Vol. 78, Issue 3 https://doi.org/10.1103/PhysRevD.78.032012	journal	August 2008
Z c ( 4430 ) and Z c ( 4200 ) as triangle singularities Nakamura, S. X.; Tsushima, K. Physical Review D, Vol. 100, Issue 5 https://doi.org/10.1103/PhysRevD.100.051502	journal	September 2019
Excited and exotic charmonium spectroscopy from lattice QCD Liu, Liuming; Moir, Graham; Peardon, Michael Journal of High Energy Physics, Vol. 2012, Issue 7 https://doi.org/10.1007/JHEP07(2012)126	journal	July 2012
Amplitude analysis of e + e − → ϒ ( n S ) π + π − at s = 10.866 GeV Garmash, A.; Bondar, A.; Kuzmin, A. Physical Review D, Vol. 91, Issue 7 https://doi.org/10.1103/PhysRevD.91.072003	journal	April 2015
Search for exclusive photoproduction of Z c ± (3900) at COMPASS Adolph, C.; Akhunzyanov, R.; Alexeev, M. G. Physics Letters B, Vol. 742 https://doi.org/10.1016/j.physletb.2015.01.042	journal	March 2015
Observation of the Y ( 4220 ) and Y ( 4390 ) in the process e + e − → η J / ψ Ablikim, M.; Achasov, M. N.; Adlarson, P. Physical Review D, Vol. 102, Issue 3 https://doi.org/10.1103/PhysRevD.102.031101	journal	August 2020
Photoproduction of exotic baryon resonances Karliner, Marek; Rosner, Jonathan L. Physics Letters B, Vol. 752 https://doi.org/10.1016/j.physletb.2015.11.068	journal	January 2016
Deciphering the mechanism of near-threshold $$J/\psi $$ photoproduction Du, Meng-Lin; Baru, Vadim; Guo, Feng-Kun The European Physical Journal C, Vol. 80, Issue 11 https://doi.org/10.1140/epjc/s10052-020-08620-5	journal	November 2020
Dispersive analysis of ω / ϕ → 3 π , π γ * Danilkin, I. V.; Fernández-Ramírez, C.; Guo, P. Physical Review D, Vol. 91, Issue 9 https://doi.org/10.1103/PhysRevD.91.094029	journal	May 2015
Study of the lineshape of the χ c 1 ( 3872 ) state Aaij, R.; Abellán Beteta, C.; Ackernley, T. Physical Review D, Vol. 102, Issue 9 https://doi.org/10.1103/PhysRevD.102.092005	journal	November 2020
Exclusive photoproduction of $J/\psi$ mesons at HERA Chekanov et al., S. The European Physical Journal C, Vol. 24, Issue 3 https://doi.org/10.1007/s10052-002-0953-7	journal	July 2002
Foundations of Nuclear and Particle Physics Donnelly, T. W.; Formaggio, J. A.; Holstein, B. R. Cambridge University Press https://doi.org/10.1017/9781139028264	book	January 2017
Elastic J/ψ production at HERA The European Physical Journal C, Vol. 46, Issue 3, p. 585-603 https://doi.org/10.1140/epjc/s2006-02519-5	journal	April 2006
Observation of Two Charged Bottomoniumlike Resonances in Υ ( 5 S ) Decays Bondar, A.; Garmash, A.; Mizuk, R. Physical Review Letters, Vol. 108, Issue 12 https://doi.org/10.1103/PhysRevLett.108.122001	journal	March 2012
Strong couplings of X ( 3872 ) J = 1 , 2 and a new look at J / ψ suppression in heavy ion collisions Brazzi, F.; Grinstein, B.; Piccinini, F. Physical Review D, Vol. 84, Issue 1 https://doi.org/10.1103/PhysRevD.84.014003	journal	July 2011
Heavy quarkonium hybrids: Spectrum, decay, and mixing Oncala, Ruben; Soto, Joan Physical Review D, Vol. 96, Issue 1 https://doi.org/10.1103/PhysRevD.96.014004	journal	July 2017
Determining the upper limit of Γee for the Y(4260) Mo, X. H.; Li, G.; Yuan, C. Z. Physics Letters B, Vol. 640, Issue 4 https://doi.org/10.1016/j.physletb.2006.07.060	journal	September 2006
Study of the ψ2(3823) and χc1(3872) states in B+ → (J/ψπ+π−)K+ decays Aaij, R.; Abellán Beteta, C.; Ackernley, T. Journal of High Energy Physics, Vol. 2020, Issue 8 https://doi.org/10.1007/JHEP08(2020)123	journal	August 2020
The X Y Z states: Experimental and theoretical status and perspectives Brambilla, Nora; Eidelman, Simon; Hanhart, Christoph Physics Reports, Vol. 873 https://doi.org/10.1016/j.physrep.2020.05.001	journal	August 2020
Quantum numbers of the X ( 3872 ) state and orbital angular momentum in its ρ 0 J / ψ decay Aaij, R.; Adeva, B.; Adinolfi, M. Physical Review D, Vol. 92, Issue 1 https://doi.org/10.1103/PhysRevD.92.011102	journal	July 2015
Production of X ( 3872 ) accompanied by a soft pion at hadron colliders Braaten, Eric; He, Li-Ping; Ingles, Kevin Physical Review D, Vol. 100, Issue 9 https://doi.org/10.1103/PhysRevD.100.094006	journal	November 2019
Nonstandard heavy mesons and baryons: Experimental evidence Olsen, Stephen Lars; Skwarnicki, Tomasz; Zieminska, Daria Reviews of Modern Physics, Vol. 90, Issue 1 https://doi.org/10.1103/RevModPhys.90.015003	journal	February 2018
Errata de Jager, C. W.; de Vries, H.; de Vries, C. Atomic Data and Nuclear Data Tables, Vol. 16, Issue 6, p. 580 https://doi.org/10.1016/0092-640X(75)90024-8	journal	December 1975
Triangle singularities and XYZ quarkonium peaks Szczepaniak, Adam P. Physics Letters B, Vol. 747 https://doi.org/10.1016/j.physletb.2015.06.029	journal	July 2015
Pion-nucleon scattering in a meson-exchange model Gasparyan, A. M.; Haidenbauer, J.; Hanhart, C. Physical Review C, Vol. 68, Issue 4 https://doi.org/10.1103/PhysRevC.68.045207	journal	October 2003
On the angular momentum of a system of two photons Landau, L. D. Collected Papers of L.D. Landau https://doi.org/10.1016/B978-0-08-010586-4.50070-5	book	January 1965
First Measurement of Near-Threshold J / ψ Exclusive Photoproduction off the Proton Ali, A.; Amaryan, M.; Anassontzis, E. G. Physical Review Letters, Vol. 123, Issue 7 https://doi.org/10.1103/PhysRevLett.123.072001	journal	August 2019
Exclusive π 0 electroproduction at W > 2 GeV with CLAS Bedlinskiy, I.; Kubarovsky, V.; Niccolai, S. Physical Review C, Vol. 90, Issue 2 https://doi.org/10.1103/PhysRevC.90.025205	journal	August 2014
Photoproduction of the ψ Particles Camerini, U.; Learned, J. G.; Prepost, R. Physical Review Letters, Vol. 35, Issue 8 https://doi.org/10.1103/PhysRevLett.35.483	journal	August 1975
Nuclear charge- and magnetization-density-distribution parameters from elastic electron scattering De Jager, C. W.; De Vries, H.; De Vries, C. Atomic Data and Nuclear Data Tables, Vol. 14, Issue 5-6 https://doi.org/10.1016/S0092-640X(74)80002-1	journal	November 1974
Confronting pentaquark photoproduction with new LHCb observations Cao, Xu; Dai, Jian-Ping Physical Review D, Vol. 100, Issue 5 https://doi.org/10.1103/PhysRevD.100.054033	journal	September 2019
Photoproduction of the charged charmoniumlike Z c + ( 4200 ) Wang, Xiao-Yun; Chen, Xu-Rong; Guskov, Alexey Physical Review D, Vol. 92, Issue 9 https://doi.org/10.1103/PhysRevD.92.094017	journal	November 2015
A non-relativistic model for the $[cc][\bar{c}\bar{c}]$ tetraquark Debastiani, V. R.; Navarra, F. S. Chinese Physics C, Vol. 43, Issue 1 https://doi.org/10.1088/1674-1137/43/1/013105	journal	January 2019
Multiquark resonances Esposito, A.; Pilloni, A.; Polosa, A. D. Physics Reports, Vol. 668 https://doi.org/10.1016/j.physrep.2016.11.002	journal	January 2017
Study of Open-Charm Decays and Radiative Transitions of the X (3872) Ablikim, M.; Achasov, M. N.; Adlarson, P. Physical Review Letters, Vol. 124, Issue 24 https://doi.org/10.1103/PhysRevLett.124.242001	journal	June 2020
Vector meson photoproduction with a linearly polarized beam Mathieu, V.; Nys, J.; Fernández-Ramírez, C. Physical Review D, Vol. 97, Issue 9 https://doi.org/10.1103/PhysRevD.97.094003	journal	May 2018
Photoproduction of hidden-bottom pentaquark and related topics Cao, Xu; Guo, Feng-Kun; Liang, Yu-Tie Physical Review D, Vol. 101, Issue 7 https://doi.org/10.1103/PhysRevD.101.074010	journal	April 2020
Determination of the absolute branching fractions of X ( 3872 ) decays Li, Chunhua; Yuan, Chang-Zheng Physical Review D, Vol. 100, Issue 9 https://doi.org/10.1103/PhysRevD.100.094003	journal	November 2019
Suppressed decay into open charm for the Y(4260) being an hybrid Kou, E.; Pene, O. Physics Letters B, Vol. 631, Issue 4 https://doi.org/10.1016/j.physletb.2005.09.013	journal	December 2005
Evidence of a Resonant Structure in the e + e − → π + D 0 D * − Cross Section between 4.05 and 4.60 GeV Ablikim, M.; Achasov, M. N.; Ahmed, S. Physical Review Letters, Vol. 122, Issue 10 https://doi.org/10.1103/PhysRevLett.122.102002	journal	March 2019
Charged charmoniumlike state Z c ( 3900 ) ± via meson photoproduction Lin, Qing-Yong; Liu, Xiang; Xu, Hu-Shan Physical Review D, Vol. 88, Issue 11 https://doi.org/10.1103/PhysRevD.88.114009	journal	December 2013
Measurement of e + e − → π + π − ψ ( 3686 ) from 4.008 to 4.600 GeV and observation of a charged structure in the π ± ψ ( 3686 ) mass spectrum Ablikim, M.; Achasov, M. N.; Ahmed, S. Physical Review D, Vol. 96, Issue 3 https://doi.org/10.1103/PhysRevD.96.032004	journal	August 2017
Photo-production of ψ(2S) mesons at HERA Adloff, C.; Aid, S.; Anderson, M. Physics Letters B, Vol. 421, Issue 1-4 https://doi.org/10.1016/S0370-2693(97)01529-3	journal	March 1998
Remarks on the quantum numbers of X ( 3872 ) from the invariant mass distributions of the ρ J / ψ and ω J / ψ final states Hanhart, C.; Kalashnikova, Yu. S.; Kudryavtsev, A. E. Physical Review D, Vol. 85, Issue 1 https://doi.org/10.1103/PhysRevD.85.011501	journal	January 2012
Global analysis of charge exchange meson production at high energies Nys, J.; Blin, A. N. Hiller; Mathieu, V. Physical Review D, Vol. 98, Issue 3 https://doi.org/10.1103/PhysRevD.98.034020	journal	August 2018
Measurement of the Dipion Mass Spectrum in X ( 3872 ) → J / ψ π + π − Decays Abulencia, A.; Acosta, D.; Adelman, J. Physical Review Letters, Vol. 96, Issue 10 https://doi.org/10.1103/PhysRevLett.96.102002	journal	March 2006
Inclusive radiative ψ ( 2 S ) decays Libby, J.; Martin, L.; Powell, A. Physical Review D, Vol. 80, Issue 7 https://doi.org/10.1103/PhysRevD.80.072002	journal	October 2009
Experimental Investigation of Pion Electroproduction Hand, L. N. Physical Review, Vol. 129, Issue 4 https://doi.org/10.1103/PhysRev.129.1834	journal	February 1963
Selection Rules for the Dematerialization of a Particle into Two Photons Yang, C. N. Physical Review, Vol. 77, Issue 2 https://doi.org/10.1103/PhysRev.77.242	journal	January 1950
Precise Measurement of the e + e − → π + π − J / ψ Cross Section at Center-of-Mass Energies from 3.77 to 4.60 GeV Ablikim, M.; Achasov, M. N.; Ahmed, S. Physical Review Letters, Vol. 118, Issue 9 https://doi.org/10.1103/PhysRevLett.118.092001	journal	March 2017