Abstract
The production of a pair of \(J{\text{/}}\Psi \) and \(\Upsilon \) mesons in Higgs boson (H) decay is studied on the basis of the perturbative Standard Model and a relativistic quark model. We calculate relativistic corrections in the decay amplitudes and decay widths connected with the relative motion of heavy quarks.
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ACKNOWLEDGMENTS
We thank A.V. Berezhnoy, I.N. Belov, V.O. Galkin, A.K. Likhoded, and D. Ebert for helpful discussions.
Funding
This work was supported by the Basis Foundation for the Development of Theoretical Physics and Mathematics, grant no. 22-1-1-23-1.
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Faustov, R.N., Martynenko, A.P. & Martynenko, F.A. Pair Quarkonium Production in Higgs Boson Decay. Phys. Part. Nuclei Lett. 20, 368–371 (2023). https://doi.org/10.1134/S1547477123030287
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DOI: https://doi.org/10.1134/S1547477123030287