Search for $e^{+}e^{-} \to π^0 K^+K^-J/ψ$ at $\sqrt{s}= 4.26 \sim$ 4.95 GeV

Using $e^+e^-$ collision data collected with the BESIII detector at 27 center-of-mass energies between 4.26 and 4.95 GeV corresponding to a total integrated luminosity of $13.0~\text{fb}^{-1}$, we report the first search for the process $e^{+}e^{-} \to π^0 K^+K^-J/ψ$. We additionally probe the cross section spectra for potential charmonium-like vector states and invariant mass distributions for intermediate $Z_c/Z_{cs}$ state signals, and find no resonant structures consistent with these exotic candidates. Given the absence of observed resonant signals, upper limits at the 90\% confidence level are determined for the Born cross sections, along with their best-fit values, as well as for the production of the intermediate states.

Authors

Publication Details

Journal
arXiv (Cornell University)
Published
2026-10-27
DOI
https://doi.org/10.48550/arxiv.2610.36916
Primary Topic
Quantum Chromodynamics and Particle Interactions
Type
preprint
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preprint

Search for $e^{+}e^{-} \to π^0 K^+K^-J/ψ$ at $\sqrt{s}= 4.26 \sim$ 4.95 GeV

W. X. Fang, S. M. Chen, K. Begzsuren, Niklaus Berger et al.
arXiv (Cornell University)
Quantum Chromodynamics and Particle Interactions
preprint

Search for $e^{+}e^{-} \to π^0 K^+K^-J/ψ$ at $\sqrt{s}= 4.26 \sim$ 4.95 GeV

W. X. Fang, S. M. Chen, K. Begzsuren, Niklaus Berger, V. Batozskaya, A. Calcaterra, G. F. Cao, S. S. Fang, D. Bettoni, Igor R. Boyko, H. L. Dai, Z. H. Duan, Xi Chu, S. J. Chen, G Cibinetto, N. Cao, S. K. Choi, E. Bianco, M. L. Chen, A. Brueggemann, Roy A. Briere, G. R. Che, A. Bortone, E. Di Fiore, X. C. Ai, A. G. Denig, D. Dedovich, M Destefanis, BESIII Collaboration, H. -R. Bao, Y. Z. Che, R. Aliberti, M. Y. Dong, F. De Mori, M. N. Achasov, M. Berlowski, M. C. Du, X. Y. Chai, S. X. Du, T. T. Chang, J. Cottee-Meldrum, S Gevrek Çetin, R. E. de Boer, F. Cossio, H. S. Chen, A. Amoroso, K. X. Fan, P Adlarson, M. Ablikim, M. H. Cai, M. Barbagiovanni, D. Cabiati, M. B. Bertani, F. Bianchi, M. S. Anderson, C. S. Akondi, X. L. Bao, G. F. Fan, P. Egorov, A. Dbeyssi, O. Bakina, I. Denisenko, Z. Y. Deng, Y. Q. Fang, L. Y. Dong, X. L. Du, Z. K. Chen, Y. Q. Chen, Jin Fang, J. J. Fan, H. Cai, J. Fang, J. P. Dai, J. Cheng, W. Chen, L. N. Cheng, J. F. Chang, Y. Bai, G. Chen, Y. Q. Du, Y. H. Fan, X. K. Cai, X. Dong, C. H. Chen, H. Y. Chen, T. Chen, X. X. Ding, Y. X. Ding, Z. J. Dong, X. C. Dai, Chao Chen, X. Y. Chen, Shaoxu Du, J. Dong, Q. An, Y. Y. Duan
preprint en

Abstract

Using $e^+e^-$ collision data collected with the BESIII detector at 27 center-of-mass energies between 4.26 and 4.95 GeV corresponding to a total integrated luminosity of $13.0~\text{fb}^{-1}$, we report the first search for the process $e^{+}e^{-} \to π^0 K^+K^-J/ψ$. We additionally probe the cross section spectra for potential charmonium-like vector states and invariant mass distributions for intermediate $Z_c/Z_{cs}$ state signals, and find no resonant structures consistent with these exotic candidates. Given the absence of observed resonant signals, upper limits at the 90\% confidence level are determined for the Born cross sections, along with their best-fit values, as well as for the production of the intermediate states.

arXiv (Cornell University)
Quantum Chromodynamics and Particle Interactions
DOIOpen Access PDFOpenAlex
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