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Abstract <p>At present, exotic hadrons with hidden charm and beauty, interpreted as tetra- and pentaquarks, have been experimentally discovered. Within the quark-diquark model of hadrons, the dynamics of these resonances is reduced to the interaction of a diquark and antidiquark in tetraquarks and a pair of diquarks and an antiquark in pentaquarks. Within this model, the ratios of the widths of quarkonium decay modes to decays with the production of a pair of hadrons with an open flavor for doubly heavy tetra- and pentaquarks with hidden charm have been obtained and discussed.</p>

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Ratios Between Decay Widths of Exotic Doubly Heavy Hadrons in the Diquark Model

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • A. A. Dobrynina,
  • A. V. Zinchenko,
  • A. Ya. Parkhomenko

摘要

Abstract

At present, exotic hadrons with hidden charm and beauty, interpreted as tetra- and pentaquarks, have been experimentally discovered. Within the quark-diquark model of hadrons, the dynamics of these resonances is reduced to the interaction of a diquark and antidiquark in tetraquarks and a pair of diquarks and an antiquark in pentaquarks. Within this model, the ratios of the widths of quarkonium decay modes to decays with the production of a pair of hadrons with an open flavor for doubly heavy tetra- and pentaquarks with hidden charm have been obtained and discussed.