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  • Open Access

Next-to-leading order QCD corrections to electromagnetic production and decay of fully charm tetraquarks

Xinran Liu, Yefan Wang*, and Ruilin Zhu†

  • *Contact author: wangyefan@nnu.edu.cn
  • †Contact author: rlzhu@njnu.edu.cn
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Phys. Rev. D 114, 014044 – Published 20 July, 2026

DOI: https://doi.org/10.1103/6fcd-bj74

Abstract

We investigate the electromagnetic properties of the fully charm tetraquark states, particularly incorporating contributions from internal gluon radiation. The paper first presents analytical expressions for the next-to-leading-order QCD corrections to the decay amplitudes of fully charm tetraquarks into two photons. It is found that the QCD corrections are significant for the JPC=0++ and JPC=2++ fully charm tetraquark decay process. Subsequently, by considering photon-photon fusion in ultraperipheral high-energy collisions of protons and nuclei and in electron-positron collision, we provide theoretical predictions for the production cross sections of fully charm tetraquark states. The results presented in this work regarding the electromagnetic production and decay of fully charm tetraquarks shall be tested in current and future experiments.

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Phys. Rev. D 114, 014044– Published 20 July, 2026
  • Received 17 April 2026
  • Accepted 6 July 2026
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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.

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