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  • Open Access

Search for doubly charmed dibaryons in baryon-baryon scattering

Yao Cui1, Yuheng Wu2, Xinmei Zhu3,*, Hongxia Huang1,†, and Jialun Ping1

  • *Contact author: xmzhu@yzu.edu.cn
  • †Contact author: hxhuang@njnu.edu.cn
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Phys. Rev. D 111, 114018 – Published 20 June, 2025

DOI: https://doi.org/10.1103/3b8z-3d2t

Abstract

We perform a systematical investigation of the doubly charmed dibaryon system with quantum numbers IJ=01 and strangeness numbers S=0, −2, and −4 in the framework of the chiral quark model. Two resonance states with strangeness numbers S=−2 are obtained in the ΛΩcc scattering channel: the Ξcc*Ξ state with resonance mass 5081 MeV and decay width 0.3 MeV, and the Ξc*Ξc′ state with mass 5213 MeV and decay width 19.8 MeV. These two predicted charmed dibaryon candidates are worth searching for experimentally. Besides this, we would like to emphasize that the multichannel coupling calculation is important for confirming the existence of multiquark states. The coupling can shift the energy of the resonance, give width to the resonance, and even destroy the resonance. Therefore, to provide the necessary information for experiments to search for exotic hadron states, the coupling calculation between the bound channels and open channels is indispensable.

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Phys. Rev. D 111, 114018– Published 20 June, 2025
  • Received 31 March 2025
  • Accepted 30 May 2025
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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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