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arxiv: 2604.00618 · v1 · pith:TOTH7YCWnew · submitted 2026-04-01 · ⚛️ nucl-th · hep-ex· hep-ph· nucl-ex

Absorption of 1P-wave heavy charmonium chi_(c1)(1P) in nuclei

Pith reviewed 2026-05-21 10:41 UTC · model grok-4.3

classification ⚛️ nucl-th hep-exhep-phnucl-ex
keywords charmonium photoproductionnuclear absorptionχ_c1(1P)transparency ratiospectral functionCEBAFheavy-ion collisions
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The pith

Nuclear photoproduction observables distinguish different strengths of χ_c1(1P) absorption in nuclei.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper calculates inclusive photoproduction of the χ_c1(1P) charmonium from carbon and tungsten nuclei near the kinematic threshold. It uses a model based on the nuclear spectral function that includes final-state absorption in the nuclear medium along with nucleon binding and Fermi motion. Absolute and relative excitation functions, momentum differential cross sections, and transparency ratios are computed for different assumed values of the absorption cross section. These observables show distinct sensitivities to the absorption strength. This sensitivity could allow extraction of the cross section by comparing predictions to data from upcoming experiments at the upgraded CEBAF facility.

Core claim

The absolute and relative observables for χ_c1(1P) photoproduction on 12C and 184W nuclei exhibit distinct sensitivity to different scenarios for the χ_c1(1P) absorption cross section in nuclei, making them useful for determining this cross section from future experimental data at the CEBAF facility.

What carries the argument

The collision model based on the nuclear spectral function for incoherent direct photon-nucleon charmonium creation processes, which incorporates final-state absorption, target nucleon binding, and Fermi motion.

If this is right

  • Absolute and relative excitation functions at photon energies of 8.25-16 GeV will differ visibly between weak and strong absorption scenarios on both nuclei.
  • Momentum differential cross sections at 13 GeV and angles 0-10 degrees will vary in shape and magnitude according to the absorption strength.
  • A-dependences of transparency ratios at 13 GeV will separate the scenarios through their variation with nuclear mass.
  • Comparison with future data can fix the value of the in-medium absorption cross section.
  • The extracted cross section informs models of charmonium suppression in high-energy heavy-ion collisions.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The same framework applied to other charmonium states such as J/ψ could separate state-dependent absorption from common nuclear effects.
  • Energy dependence extracted from the 8-16 GeV range might be extrapolated to higher energies relevant for collider experiments.
  • If the sensitivities hold, the observables provide an independent constraint on charmonium transport coefficients in nuclear matter.

Load-bearing premise

The nuclear spectral function model accurately describes incoherent direct photon-nucleon processes without significant missing nuclear effects or medium modifications.

What would settle it

Measurements at the upgraded CEBAF facility showing identical results for the considered observables across all assumed absorption cross sections would falsify the predicted distinct sensitivities.

Figures

Figures reproduced from arXiv: 2604.00618 by E. Ya. Paryev.

Figure 1
Figure 1. Figure 1: (Color online.) Total cross sections for the reactions [PITH_FULL_IMAGE:figures/full_fig_p008_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: (Color online.) The fractions of J/ψ mesons arising from radiative decays of the two χc1(1P), χc2(1P) states (F(χc)) and hadronic decays of the ψ(2S) mesons (F(ψ ′ )) produced, re￾spectively, in the direct reactions γp → χc1,c2(1P)p and γp → ψ(2S)p with respect to the total J/ψ yield originating from these decays and from the process γp → J/ψp as well as their sum, F(χc) + F(ψ ′ ), as functions of the inci… view at source ↗
Figure 3
Figure 3. Figure 3: (Color online.) Excitation function for production of [PITH_FULL_IMAGE:figures/full_fig_p011_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: (Color online.) The same as in Fig. 3, but for the [PITH_FULL_IMAGE:figures/full_fig_p012_4.png] view at source ↗
Figure 5
Figure 5. Figure 5: (Color online.) Momentum differential cross sections for the production of [PITH_FULL_IMAGE:figures/full_fig_p013_5.png] view at source ↗
Figure 6
Figure 6. Figure 6: (Color online.) Transparency ratio TA for the χc1(1P) mesons from the direct processes (1), (2) proceeding on an off-shell target nucleons as a function of the incident photon energy for combination 184W/12C, calculated for different values of the absorption cross section σχcN indicated in the inset. The arrow indicates the threshold energy for the χc1(1P) photoproduction on a free target nucleon at rest. … view at source ↗
Figure 7
Figure 7. Figure 7: (Color online.) Transparency ratio TA for the χc1(1P) mesons from the direct processes (1), (2) proceeding on an off-shell target nucleons as a function of the χc1(1P) laboratory momentum for incident photon energy of 13 GeV for combination 184W/12C, calculated in the laboratory polar angular range of 0◦–10◦ for different values of the absorption cross section σχcN indicated in the inset. to the high-momen… view at source ↗
Figure 8
Figure 8. Figure 8: (Color online.) Transparency ratio SA for the χc1(1P) mesons from the direct processes (1), (2) proceeding on an off-shell target nucleons at incident photon energy of 13 GeV in the laboratory system as a function of the nuclear mass number A, calculated for different values of the absorption cross section σχcN indicated in the inset. The lines are to guide the eyes. cases of relatively ”light”, medium-mas… view at source ↗
Figure 9
Figure 9. Figure 9: (Color online.) The same as in Fig. 8, but for the transparency ratio [PITH_FULL_IMAGE:figures/full_fig_p017_9.png] view at source ↗
Figure 10
Figure 10. Figure 10: (Color online.) Transparency ratio TA for the χc1(1P) mesons from the direct processes (1), (2) proceeding on an off-shell target nucleons as a function of the absorption cross section σχcN at incident photon energy of 13 GeV for combination 184W/12C. References [1] A. Adare et al. [the PHENIX Collaboration], Phys. Rev. Lett. 111, 202301 (2013), arXiv:1305.5516 [nucl-ex]. [2] I. Arsene et al. [the BRAHMS … view at source ↗
read the original abstract

We study the inclusive heavy charmonium $\chi_{c1}(1P)$ photoproduction from nuclei near the kinematic threshold within the collision model, based on the nuclear spectral function, for incoherent direct photon--nucleon charmonium creation processes. The model accounts for the final $\chi_{c1}(1P)$ absorption in nuclear medium, target nucleon binding and Fermi motion. We calculate the absolute and relative excitation functions on $^{12}$C and $^{184}$W target nuclei at near-threshold photon beam energies of 8.25--16.0 GeV, the absolute momentum differential cross sections and ratios of them for its production off these target nuclei at laboratory polar angles of 0$^{\circ}$--10$^{\circ}$ and for photon energy of 13 GeV as well as the A-dependences of the transparency ratios for the $\chi_{c1}(1P)$ at photon energy of 13 GeV within the different scenarios for its absorption cross section in nuclei. We demonstrate that the absolute and relative observables considered reveal distinct sensitivity to these scenarios. Therefore, they might be useful for the determination of this cross section from the comparison of them with the experimental data from the future experiments at the upgraded up to 22 GeV CEBAF facility, which is of crucial importance in understanding of charmonium production and suppression in high-energy heavy--ion collisions in a search for the quark-gluon plasma.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

1 major / 1 minor

Summary. The paper studies inclusive photoproduction of the χ_c1(1P) charmonium near kinematic threshold on nuclei using a nuclear spectral function model for incoherent direct photon-nucleon processes. The model includes final-state absorption in the nuclear medium together with target nucleon binding and Fermi motion. Absolute and relative excitation functions are computed for 12C and 184W at photon energies 8.25–16 GeV; absolute momentum spectra and their ratios are given at 13 GeV for lab angles 0°–10°; and A-dependences of transparency ratios are presented at 13 GeV. These observables are evaluated under several scenarios for the χ_c1(1P) absorption cross section, and the authors conclude that the observables display distinct sensitivity to the choice of scenario, offering a route to extract the cross section from future CEBAF data.

Significance. If the claimed sensitivities survive a more complete treatment of formation dynamics, the work supplies a concrete set of observables that could constrain the in-medium absorption cross section of the 1P charmonium state. Such a constraint would be directly relevant to the interpretation of charmonium suppression patterns in heavy-ion collisions and to the search for quark-gluon plasma signatures.

major comments (1)
  1. The nuclear spectral function model employed throughout the manuscript does not modulate the absorption probability by a position-dependent formation factor. Near threshold (E_γ = 8.25–16 GeV) the formation length l_form ≈ (E_χ / m_χ) τ_form can reach several fm and become comparable to nuclear radii; any such effect would vary with photon energy, emission angle, and target mass, potentially correlating with or masking the differences between the assumed absorption scenarios and thereby weakening the central claim of distinct sensitivity.
minor comments (1)
  1. The abstract and introduction would benefit from an explicit statement of the numerical values adopted for the absorption cross section in each scenario.

Simulated Author's Rebuttal

1 responses · 0 unresolved

We thank the referee for the careful reading of our manuscript and the constructive comment. We address the major point below.

read point-by-point responses
  1. Referee: The nuclear spectral function model employed throughout the manuscript does not modulate the absorption probability by a position-dependent formation factor. Near threshold (E_γ = 8.25–16 GeV) the formation length l_form ≈ (E_χ / m_χ) τ_form can reach several fm and become comparable to nuclear radii; any such effect would vary with photon energy, emission angle, and target mass, potentially correlating with or masking the differences between the assumed absorption scenarios and thereby weakening the central claim of distinct sensitivity.

    Authors: We acknowledge that the nuclear spectral function model used in the manuscript does not incorporate an explicit position-dependent formation factor for the χ_c1(1P) state. The calculations assume absorption of the fully formed charmonium in the nuclear medium after production via the incoherent photon-nucleon process. While formation-length effects could in principle introduce additional energy, angle, and A dependence near threshold, the relative observables (such as ratios of excitation functions, momentum spectra, and transparency ratios) are constructed to highlight differences arising from the choice of absorption cross section. We will revise the manuscript to include a dedicated paragraph discussing the formation-length approximation, its possible influence on the reported sensitivities, and the limitations of the present approach. revision: partial

Circularity Check

0 steps flagged

No circularity: parametric sensitivity study with independent inputs

full rationale

The paper treats the χ_c1(1P) absorption cross section as an external input varied across explicit scenarios, then computes absolute/relative excitation functions, momentum spectra, and transparency ratios via the nuclear spectral function model that incorporates binding and Fermi motion. These forward calculations are not derived from or fitted to the target observables; the claimed distinct sensitivity follows directly from the differing input values propagated through the model equations. No self-definitional steps, fitted inputs renamed as predictions, or load-bearing self-citations appear in the derivation chain. The work is self-contained against external benchmarks because the model assumptions (spectral function, incoherent production) are stated separately from the absorption scenarios and can be tested independently with data.

Axiom & Free-Parameter Ledger

1 free parameters · 1 axioms · 0 invented entities

The central claim rests on the validity of the collision model and the chosen absorption scenarios, which are not derived from first principles but assumed to explore possibilities.

free parameters (1)
  • absorption cross section
    Different possible values for the absorption cross section are assumed to test sensitivity of observables.
axioms (1)
  • domain assumption Use of nuclear spectral function for photon-nucleon interactions
    The model is based on the nuclear spectral function for incoherent direct photon--nucleon charmonium creation processes.

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Works this paper leans on

117 extracted references · 117 canonical work pages · 44 internal anchors

  1. [1]

    Adareet al.[the PHENIX Collaboration], Phys

    A. Adareet al.[the PHENIX Collaboration], Phys. Rev. Lett.111, 202301 (2013), arXiv:1305.5516 [nucl-ex]

  2. [2]

    Arseneet al.[the BRAHMS Collaboration], Nucl

    I. Arseneet al.[the BRAHMS Collaboration], Nucl. Phys. A757, 1 (2005), arXiv:nucl- ex/0410020

  3. [3]

    B. B. Backet al.[the PHOBOS Collaboration], Nucl. Phys. A757, 28 (2005), arXiv:nucl- ex/0410022

  4. [4]

    Adamset al.[the STAR Collaboration], Nucl

    J. Adamset al.[the STAR Collaboration], Nucl. Phys. A757, 102 (2005), arXiv:nucl- ex/0501009

  5. [5]

    Adcoxet al.[the PHENIX Collaboration], Nucl

    K. Adcoxet al.[the PHENIX Collaboration], Nucl. Phys. A757, 184 (2005), arXiv:nucl- ex/0410003

  6. [6]

    Heavy Ion Collisions: The Big Picture, and the Big Questions

    W. Busza, K. Rajagopal, and W. van der Schee, Ann. Rev. Nucl. Part. Sci68, 339 (2018); arXiv:1802.04801 [hep-ph]

  7. [7]

    J. W. Harris and B. Mueller, Eur. Phys. J. C84, 247 (2024); arXiv:2308.05743 [hep-ph]

  8. [8]

    Z. Tang, W. Zha, and Y. Zhang, Nucl. Sci. Tech.31, 81 (2020); arXiv:2105.11656 [nucl-ex]. 18

  9. [9]

    The STAR Collaboration, arXiv:2509.12842 [nucl-ex]

  10. [10]

    Chenet al., arXiv:2601.12977 [nucl-ex]

    J. Chenet al., arXiv:2601.12977 [nucl-ex]

  11. [11]

    Matsui and H

    T. Matsui and H. Satz, Phys. Lett. B178, 416 (1986)

  12. [12]

    Karsch, M

    F. Karsch, M. T. Mehr, and H. Satz, Z. Phys. C37, 617 (1988)

  13. [13]

    Sequential charmonium dissociation

    F. Karsch, D. Kharzeev, and H. Satz, Phys. Lett. B637, 75 (2006); arXiv:hep-ph/0512239

  14. [14]

    String Breaking and Quarkonium Dissociation at Finite Temperatures

    S. Digal, P. Petreczky, and H. Satz, Phys. Lett. B514, 57 (2001); arXiv:hep-ph/0105234

  15. [15]

    Quarkonium Feed-Down and Sequential Suppression

    S. Digal, P. Petreczky, and H. Satz, Phys. Rev. D64, 094015 (2001); arXiv:hep-ph/0106017

  16. [16]

    H. Satz, J. Phys. G.32, R25 (2006); arXiv:hep-ph/0512217

  17. [17]

    Quarkonium Binding and Dissociation: The Spectral Analysis of the QGP

    H. Satz, Nucl. Phys. A783, 249 (2007); arXiv:hep-ph/0609197

  18. [18]

    Dissociation of a Heavy Quarkonium at High Temperatures

    C.-Y. Wong, Phys. Rev. C65, 034902 (2002); arXiv:nucl-th/0110004

  19. [19]

    Aaijet al.[the LHCb Collaboration], Eur

    R. Aaijet al.[the LHCb Collaboration], Eur. Phys. J. C80, 185 (2020); arXiv:1908.03099 [hep-ex]

  20. [20]

    Aaijet al.[the LHCb Collaboration], Eur

    R. Aaijet al.[the LHCb Collaboration], Eur. Phys. J. C85, 562 (2025); arXiv:2410.18018 [hep-ex]

  21. [21]

    N. J. Abdulameeret al.[the PHENIX Collaboration], Phys. Rev. D112, L051103 (2025); arXiv:2409.03728 [hep-ex]. U. A. Acharyaet al.[the PHENIX Collaboration], Phys. Rev. D101, 052006 (2020); arXiv:1912.13424 [hep-ex]. U. A. Acharyaet al.[the PHENIX Collaboration], Phys. Rev. C102, 014902 (2020); arXiv:1910.14487 [hep-ex]

  22. [22]

    Antoniazziet al.[the E705 Collaboration], Phys

    L. Antoniazziet al.[the E705 Collaboration], Phys. Rev. Lett.70, 383 (1993)

  23. [23]

    Study of psi' and chi_c decays as feed-down sources of J/psi hadro-production

    P. Faccioli, C. Lourenco, J. Seixas, and H. K. Woehri, JHEP10, 004 (2008); arXiv:0809.2153 [hep-ph]

  24. [24]

    Alessandroet al.[the NA50 Collaboration], Eur

    B. Alessandroet al.[the NA50 Collaboration], Eur. Phys. J. C39, 335 (2005); arXiv:hep- ex/0412036

  25. [25]

    Alessandroet al.[the NA50 Collaboration], Eur

    B. Alessandroet al.[the NA50 Collaboration], Eur. Phys. J. C33, 31 (2004)

  26. [26]

    Adareet al.[the PHENIX Collaboration], Phys

    A. Adareet al.[the PHENIX Collaboration], Phys. Rev. Lett.98, 232301 (2007); arXiv:nucl- ex/0611020

  27. [27]

    Adamet al.[the STAR Collaboration], Phys

    J. Adamet al.[the STAR Collaboration], Phys. Lett. B797, 134917 (2019); arXiv:1905.13669 [nucl-ex]

  28. [28]

    J/$\psi$ suppression at forward rapidity in Pb-Pb collisions at $\sqrt{s_{{\rm NN}}} = 5.02$ TeV

    J. Adamet al.[the ALICE Collaboration], Phys. Lett. B766, 212 (2017); arXiv:1606.08197 [nucl-ex]

  29. [29]

    Suppression of non-prompt J/psi, prompt J/psi, and Y(1S) in PbPb collisions at sqrt(sNN) = 2.76 TeV

    S. Chatrchyanet al.[the CMS Collaboration], JHEP05, 063 (2012); arXiv:1201.5069 [nucl-ex]

  30. [30]

    Prompt and nonprompt J/$\psi$ production and nuclear modification in $p$Pb collisions at $\sqrt{s_{\text{NN}}}= 8.16$ TeV

    R. Aaijet al.[the LHCb Collaboration], Phys. Lett. B774, 159 (2017); arXiv:1706.07122 [hep-ex]. 19

  31. [31]

    W. K. Brooks [for the ATLAS Collaboration], Nucl. Part. Phys. Proc.276-278, 149 (2016); arXiv:1509.06797 [hep-ex]

  32. [32]

    Study of $\psi(2S)$ production and cold nuclear matter effects in pPb collisions at $\sqrt{s_{NN}}=5~\mathrm{TeV}$

    R. Aaijet al.[the LHCb Collaboration], JHEP03, 133 (2016); arXiv:1601.07878 [nucl-ex]

  33. [33]

    Adareet al.[the PHENIX Collaboration], Phys

    A. Adareet al.[the PHENIX Collaboration], Phys. Rev. C95, 034904 (2017); arXiv:1609.06550 [nucl-ex]

  34. [34]

    A. M. Sirunyanet al.[the CMS Collaboration], Phys. Lett. B790, 509 (2019); arXiv:1805.02248 [hep-ex]

  35. [35]

    Acharyaet al.[the ALICE Collaboration], Phys

    S. Acharyaet al.[the ALICE Collaboration], Phys. Rev. Lett.132, 042301 (2024); arXiv:2210.08893 [nucl-ex]

  36. [36]

    Measurement of the relative prompt production rate of chi(c2) and chi(c1) in pp collisions at sqrt(s) = 7 TeV

    S. Chatrchyanet al.[the CMS Collaboration], Eur. Phys. J. C72, 2251 (2012); arXiv:1210.0875 [hep-ex]

  37. [37]

    Measurement of chi_c1 and chi_c2 production with sqrt(s) = 7 TeV pp collisions at ATLAS

    G. Aadet al.[the ATLAS Collaboration], JHEP07, 154 (2014); arXiv:1404.7035 [hep-ex]

  38. [38]

    Measurement of the cross-section ratio $\sigma(\chi_{c2})/\sigma(\chi_{c1})$ for prompt $\chi_c$ production at $\sqrt{s}=7$ TeV

    R. Aaijet al.[the LHCb Collaboration], Phys. Lett. B714, 215 (2012); arXiv:1202.1080 [hep- ex]

  39. [39]

    Measurement of the ratio of prompt $\chi_{c}$ to $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ TeV

    R. Aaijet al.[the LHCb Collaboration], Phys. Lett. B718, 431 (2012); arXiv:1204.1462 [hep- ex]

  40. [40]

    Measurement of the relative rate of prompt $\chi_{c0}$, $\chi_{c1}$ and $\chi_{c2}$ production at $\sqrt{s}=7$TeV

    R. Aaijet al.[the LHCb Collaboration], JHEP10, 115 (2013); arXiv:1307.4285 [hep-ex]

  41. [41]

    Ambrogianiet al.[the E835 Collaboration], Phys

    M. Ambrogianiet al.[the E835 Collaboration], Phys. Rev. Lett.83, 2902 (1999)

  42. [42]

    Lemoigneet al.[the WA11 Collaboration], Phys

    Y. Lemoigneet al.[the WA11 Collaboration], Phys. Lett. B113, 509 (1982)

  43. [43]

    Abeet al.[the CDF Collaboration], Phys

    F. Abeet al.[the CDF Collaboration], Phys. Rev. Lett.79, 578 (1997)

  44. [44]

    Abulenciaet al.[the CDF Collaboration], Phys

    A. Abulenciaet al.[the CDF Collaboration], Phys. Rev. Lett.98, 232001 (2007); arXiv:hep- ex/0703028

  45. [45]

    Production of the Charmonium States chic_1 and chic_2 in Proton Nucleus Interactions at sqrt{s} = 41.6 GeV

    I. Abtet al.[the HERA-B Collaboration], Phys. Rev. D79, 012001 (2009); arXiv:0807.2167 [hep-ex]

  46. [46]

    Ablikimet al.[the BESIII Collaboration], arXiv:2601.01758 [hep-ex]

    M. Ablikimet al.[the BESIII Collaboration], arXiv:2601.01758 [hep-ex]

  47. [47]

    Ablikimet al.[the BESIII Collaboration], arXiv:2601.19493 [hep-ex]

    M. Ablikimet al.[the BESIII Collaboration], arXiv:2601.19493 [hep-ex]

  48. [48]

    J. Y. Sungu and A. C. Jumasahatov, J. Phys. G46, 035007 (2019)

  49. [49]

    N. N. Achasov and G. N. Shestakov, Phys. Rev. D109, 036028 (2024); arXiv:2401.04948 [hep-ph]

  50. [50]

    D mesons in matter and the in-medium properties of charmonium

    B. Friman, S. H. Lee, and T. Song, Phys. Lett. B548, 153 (2002); arXiv:nucl-th/0207006

  51. [51]

    Agarwal [for the CBM Collaboration], arXiv:2207.14585 [hep-ex]

    K. Agarwal [for the CBM Collaboration], arXiv:2207.14585 [hep-ex]

  52. [52]

    Abgaryanet al.[the MPD Collaboration], Eur

    V. Abgaryanet al.[the MPD Collaboration], Eur. Phys. J. A58, 140 (2022); arXiv:2202.08970 [physics.ins-det]

  53. [53]

    Quarkonium at finite temperature: Towards realistic phenomenology from first principles

    Y. Burnier, O. Kaczmarek, and A. Rothkopf, JHEP12, 101 (2015); arXiv:1509.07366 [hep-ph]. 20

  54. [54]

    Gluo-dissociation of Heavy Quarkonium in the Quark-Gluon Plasma Revisited

    S. Chen and M. He, Phys. Rev. C96, 034901 (2017); arXiv:1705.10110 [nucl-th]

  55. [55]

    Thermal width and gluo-dissociation of quarkonium in pNRQCD

    N. Brambilla, M. A. Escobedo, J. Ghiglieri, and A. Vairo, JHEP12, 116 (2011); arXiv:1109.5826 [hep-ph]

  56. [56]

    Thermal width and quarkonium dissociation by inelastic parton scattering

    N. Brambilla, M. A. Escobedo, J. Ghiglieri, and A. Vairo, JHEP05, 130 (2013); arXiv:1303.6097 [hep-ph]

  57. [57]

    Charmonium Suppression and Regeneration from SPS to RHIC

    L. Grandchamp and R. Rapp, Nucl. Phys. A709, 415 (2002); arXiv:hep-ph/0205305

  58. [58]

    Grandchamp, R

    L. Grandchamp, R. Rapp, and G. E. Brown, Phys. Rev. Lett.92, 212301 (2004); arXiv:hep- ph/0306077

  59. [59]

    Du and R

    X. Du and R. Rapp, Phys. Lett. B834, 137414 (2022); arXiv:2207.00065 [nucl-th]

  60. [60]

    Song and J

    T. Song and J. Zhao, Phys. Rev. C113, 024916 (2026); arXiv:2512.06339 [nucl-th]

  61. [61]

    Charmonium Cross Sections and the QGP

    T. Barnes, Eur. Phys. J. A18, 531 (2003); arXiv:nucl-th/0306031

  62. [62]

    L. M. Abreu, F. S. Navarra, and H. P. L. Vieira, Phys. Lett. B864, 139407 (2025); arXiv:2409.12755 [hep-ph]

  63. [63]

    $J/\psi$ reaction mechanisms and suppression in the nuclear medium

    R. Molina, C. Xiao, and E. Oset, Phys. Rev. C86, 014604 (2012); arXiv:1203.0979 [nucl-th]

  64. [64]

    J/\Psi N and Psi' N total cross sections from photoproduction data: failure of vector dominance

    J. Huefner and B. Z. Kopeliovich, Phys. Lett. B426, 154 (1998); arXiv:hep-ph/9712297

  65. [65]

    Gerland, L

    L. Gerland, L. Frankfurt, and M. Strikman, Phys. Lett. B619, 95 (2005); arXiv:nucl- th/0501074

  66. [66]

    R. L. Andersonet al., Phys. Rev. Lett.38, 263 (1977)

  67. [67]

    Empirical regularities in the $x$--dependence of nuclear J/Psi suppression

    C. Gerschel, J. Huefner and E. Quack, J. Phys. G22, 1335 (1996); arXiv:hep-ph/9502299

  68. [68]

    Kharzeev, C

    D. Kharzeev, C. Lourenco, M. Nardi, and H. Satz, Z. Phys. C74, 307 (1997); arXiv:hep- ph/9612217

  69. [69]

    Povh and J

    B. Povh and J. Huefner, Phys. Rev. Lett.58, 1612 (1987)

  70. [70]

    Are the $J/\psi$ and $\chi_c A$ Dependencies the Same?

    R. Vogt, Nucl. Phys. A700, 539 (2002); arXiv:hep-ph/0107045

  71. [71]

    J/\Psi production, $\chi$ polarization and Color Fluctuations

    L. Gerland, L. Frankfurt, M. Strikman, H. Stoecker, and W. Greiner, Phys. Rev. Lett.81, 762 (1998); arXiv:nucl-th/9803034

  72. [72]

    Photoproduction of Charmonia and Total Charmonium-Proton Cross Sections

    J. Huefner, Yu. P. Ivanov, B. Z. Kopeliovich, and A. V. Tarasov, Phys. Rev. D62, 094022 (2000); arXiv:hep-ph/0007111

  73. [73]

    Buchmuller and S.-H

    W. Buchmuller and S.-H. Tye, Phys. Rev. D24, 132 (1981)

  74. [74]

    Wave Function Based Characteristics of Hybrid Mesons

    N. Akbar, B. Masud, and S. Noor, Eur. Phys. J. A47, 124 (2011); arXiv:1106.3465 [hep-ph]. Erratum: Eur. Phys. J. A50, 121 (2014)

  75. [75]

    T. Das, D. K. Choudhury, and K. K. Pathak, Indian Journal of Physics90, 1307 (2016); arXiv:1505.05634 [hep-ph]

  76. [76]

    Q. Liu, X. Jiang, Y. Chen, C. Shi, and W. Sun, arXiv:2505.21193 [hep-ph]

  77. [77]

    J. Zhao, J. Aichelin, P. B. Gossiaux, and K. Werner, arXiv:2511.08796 [hep-ph]. 21

  78. [78]

    Dissociation cross sections of ground-state and excited charmonia with light mesons in the quark model

    T. Barnes, E. S. Swanson, C.-Y. Wong, and X.-M. Xu, Phys. Rev. C68, 014903 (2003); arXiv:nucl-th/0302052

  79. [79]

    C.-Y. Wong, E. S. Swanson, and T. Barnes, Phys. Rev. C65, 014903 (2002); arXiv:nucl- th/0106067. Erratum: Phys. Rev. C66, 029901 (2002)

  80. [80]

    Farrar, L

    G. Farrar, L. Frankfurt, M. Strikman, and H. Liu, Phys. Rev. Lett.64, 2996 (1990)

Showing first 80 references.