- Physical Review Journals
All JournalsPhysics Magazine

Physical Review D

Reuse & Permissions

It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 4.0 International license. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

Export citation

Export citation

Choose format for download:

Download Citation
  • Open Access

Exclusive semileptonic and nonleptonic J/ψ decays

V. O. Galkin1,* and I. S. Sukhanov1,2,†

  • *Contact author: vgalkin@frccsc.ru
  • †Contact author: sukhanov.is17@physics.msu.ru
PDF

Phys. Rev. D 113, 113008 – Published 18 June, 2026

DOI: https://doi.org/10.1103/46pk-nmsc

Abstract

Exclusive semileptonic and nonleptonic J/ψ decays are investigated in the framework of the relativistic quark model based on the quasipotential approach and quantum chromodynamics. The form factors parametrizing the hadronic matrix element of the weak current are calculated with the complete account of the relativistic effects. These form factors are expressed as the overlap integrals of the meson wave functions and are determined in the whole accessible kinematic range. On this basis the semileptonic decay branching fractions are evaluated for decays involving both electrons and muons. The nonleptonic decays are considered in the factorization approximation in the limit for the number of colors Nc→∞. The obtain branching fractions are found to be of the order 10−9–10−12. They are compared with the previous theoretical predictions and available experimental upper bounds.

View figure in article

Physics Subject Headings (PhySH)

Article Text

References (35)

  1. M. Ablikim et al. (BESIII Collaboration), Number of J/ψ events at BESIII, Chin. Phys. C 46, 074001 (2022).
  2. M. Achasov et al., STCF conceptual design report (Volume 1): Physics & detector, Front. Phys. 19, 14701 (2024).
  3. M. A. Sanchis-Lozano, On the search for weak decays of heavy quarkonium in dedicated heavy quark factories, Z. Phys. C 62, 271 (1994).
  4. M. Ablikim et al. (BESIII Collaboration), Search for the semi-muonic charmonium decay J/ψ→D−μ+νμ+c.c., J. High Energy Phys. 01 (2024) 126.
  5. M. Ablikim et al. (BESIII Collaboration), Search for the rare semi-leptonic decay J/ψ→D−e+νe+c.c., J. High Energy Phys. 06 (2021) 157.
  6. M. Ablikim et al. (BES Collaboration), Search for the rare decays J/ψ→D(s)−e+νe,J/ψ→D−e+νe, and J/ψ→D¯0e+e−, Phys. Lett. B 639, 418 (2006).
  7. M. Ablikim et al. (BESIII Collaboration), Search for the weak decays J/ψ→D(s)(*)eνe+c.c., Phys. Rev. D 90, 112014 (2014).
  8. M. Ablikim et al. (BESIII Collaboration), Search for J/ψ weak decays containing a D meson, Phys. Rev. D 110, 032020 (2024).
  9. M. Ablikim et al. (BESIII Collaboration), Search for the charmonium weak decays J/ψ→Ds−ρ++c.c. and J/ψ→Ds−π++c.c., J. High Energy Phys. 12 (2025) 077.
  10. M. Ablikim et al. (BESIII Collaboration), Search for the charmonium weak decay J/ψ→D¯0K¯*0+c.c., J. High Energy Phys. 05 (2026) 126.
  11. M. Ablikim et al. (BESIII Collaboration), Search for the rare decays J/ψ→D0e+e−+c.c. and ψ(3686)→D0e+e−+c.c., Phys. Rev. D 96, 111101 (2017).
  12. M. Ablikim et al. (BESIII Collaboration), Search for the FCNC charmonium decay J/ψ→D0μ+μ−+c.c., J. High Energy Phys. 04 (2025) 061.
  13. X. Li, K. Fan, Z. You, Y. Zhang, and M. Zhao, Mini-review of charmonium weak decays at BESIII, arXiv:2603.22082.
  14. A. J. Buras, QCD factors a1 and a2 beyond leading logarithms versus factorization in nonleptonic heavy meson decays, Nucl. Phys. B434, 606 (1995).
  15. D. Ebert, R. N. Faustov, and V. O. Galkin, Properties of heavy quarkonia and Bc mesons in the relativistic quark model, Phys. Rev. D 67, 014027 (2003).
  16. D. Ebert, R. N. Faustov, and V. O. Galkin, Mass spectra and Regge trajectories of light mesons in the relativistic quark model, Phys. Rev. D 79, 114029 (2009).
  17. D. Ebert, R. N. Faustov, and V. O. Galkin, Weak decays of the Bc meson to charmonium and D mesons in the relativistic quark model, Phys. Rev. D 68, 094020 (2003).
  18. V. O. Galkin and I. S. Sukhanov, Exclusive semileptonic decays of D and Ds mesons into orbitally and radially excited states of strange and light mesons, Phys. Rev. D 111, 093001 (2025).
  19. R. N. Faustov, V. O. Galkin, and X.-W. Kang, Semileptonic decays of D and Ds mesons in the relativistic quark model, Phys. Rev. D 101, 013004 (2020).
  20. S.-Y. Yu, X.-W. Kang, and V. O. Galkin, Two-body nonleptonic decays of the heavy mesons in the factorization approach, Front. Phys. 18, 64301 (2023).
  21. S. de Boer, B. Müller, and D. Seidel, Higher-order Wilson coefficients for c→u transitions in the standard model, J. High Energy Phys. 08 (2016) 091.
  22. D. Ebert, R. N. Faustov, and V. O. Galkin, Heavy-light meson spectroscopy and Regge trajectories in the relativistic quark model, Eur. Phys. J. C 66, 197 (2010).
  23. Y. Meng, J.-L. Dang, C. Liu, X.-Y. Tuo, H. Yan, Y.-B. Yang, and K.-L. Zhang, First lattice QCD calculation of J/ψ semileptonic decay containing D and Ds particles, Phys. Rev. D 110, 074510 (2024).
  24. M. A. Ivanov and C. T. Tran, Exclusive decays J/ψ→D(s)(*)−l+νl in a covariant constituent quark model with infrared confinement, Phys. Rev. D 92, 074030 (2015).
  25. T. Wang, Y. Jiang, H. Yuan, K. Chai, and G.-L. Wang, Weak decays of J/ψ and ϒ(1S), J. Phys. G 44, 045004 (2017).
  26. Y.-M. Wang, H. Zou, Z.-T. Wei, X.-Q. Li, and C.-D. Lu, The transition form-factors for semi-leptonic weak decays of J/ψ in QCD sum rules, Eur. Phys. J. C 54, 107 (2008).
  27. Y.-L. Shen and Y.-M. Wang, J/ψ weak decays in the covariant light-front quark model, Phys. Rev. D 78, 074012 (2008).
  28. R. Dhir and R. C. Verma, Effects of flavor dependence on weak decays of J/ψ and ϒ, Adv. High Energy Phys. 2013, 706543 (2013).
  29. J. Sun, Y. Yang, J. Huang, L. Chen, and Q. Chang, Study of the ψ(1s,2s) and ηc(1s,2s) weak decays into DM, Adv. High Energy Phys. 2016, 1 (2016).
  30. S. Navas et al. (Particle Data Group), Review of particle physics, Phys. Rev. D 110, 030001 (2024).
  31. C.-T. Tran, M. A. Ivanov, N.-D. Nguyen, and Q.-C. Vo, Polarization observables in semileptonic V→P decays of quarkonia, J. Phys. Conf. Ser. 3040, 012003 (2025).
  32. Y.-M. Wang, H. Zou, Z.-T. Wei, X.-Q. Li, and C.-D. Lu, Weak decays of J/ψ: The non-leptonic case, Eur. Phys. J. C 55, 607 (2008).
  33. A. Y. Barnyakov (Super Charm-Tau Factory Collaboration), The project of the Super Charm-Tau Factory in Novosibirsk, J. Phys. Conf. Ser. 1561, 012004 (2020).
  34. H. P. Peng, Y. H. Zheng, and X. R. Zhou, Super Tau-Charm Facility of China, Physics 49, 513 (2020).
  35. H.-Y. Cheng, X.-R. Lyu, and Z.-Z. Xing, Charm physics at the Super τ-Charm Factory, Chin. Phys. Lett. 42, 010201 (2025).

Outline

Information

Phys. Rev. D 113, 113008– Published 18 June, 2026
  • Received 7 April 2026
  • Accepted 27 May 2026
Crossmark - Check for updates button
Creative Commons Logo

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation