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The strong coupling constants of doubly heavy baryons with heavy mesons.

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Title: The strong coupling constants of doubly heavy baryons with heavy mesons.
Authors: Hu, Xiao-Hui1,2 (AUTHOR) huxiaohui@cumt.edu.cn, Zhou, Quan-Yu1 (AUTHOR) 14224300@cumt.edu.cn, Xing, Ye1 (AUTHOR) xingye_guang@cumt.edu.cn, Shi, Yu-Ji3 (AUTHOR) shiyuji@ecust.edu.cn
Source: European Physical Journal C -- Particles & Fields. Jun2025, Vol. 85 Issue 6, p1-14. 14p.
Subjects: Coupling constants, Quark models, Baryons, Quantum chromodynamics, Forecasting, Mesons
Abstract: In experiments, only one doubly charmed baryon Ξ cc + + has been successfully identified to date. The LHCb collaboration is poised to discover other doubly heavy baryons, Ξ cc + and Ξ bc + , necessitating a comprehensive study of doubly heavy baryons from various perspectives. Such investigations will elucidate the properties of the newly discovered states and facilitate the search for other doubly heavy baryons as predicted in the quark model. In this paper, we explore the strong coupling between the doubly heavy baryon, singly heavy baryon, and heavy meson, B Q Q ′ B Q M Q ′ , using the light-cone QCD sum rules approach. We analytically and numerically calculate the strong coupling, B Q Q ′ B Q M Q ′ , utilizing the light-cone distribution amplitudes of the singly heavy baryon B Q . Numerical predictions for these strong couplings are provided, along with an error analysis. Our theoretical findings can be employed to examine the strong and weak decay dynamics of doubly heavy baryons. Furthermore, our results may offer experimentalists a valuable tool for analyzing data on the strong coupling constants among hadronic multiplets. [ABSTRACT FROM AUTHOR]
Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: The strong coupling constants of doubly heavy baryons with heavy mesons.
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  Data: <searchLink fieldCode="AR" term="%22Hu%2C+Xiao-Hui%22">Hu, Xiao-Hui</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> huxiaohui@cumt.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhou%2C+Quan-Yu%22">Zhou, Quan-Yu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 14224300@cumt.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Xing%2C+Ye%22">Xing, Ye</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> xingye_guang@cumt.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Shi%2C+Yu-Ji%22">Shi, Yu-Ji</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> shiyuji@ecust.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+C+--+Particles+%26+Fields%22">European Physical Journal C -- Particles & Fields</searchLink>. Jun2025, Vol. 85 Issue 6, p1-14. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Coupling+constants%22">Coupling constants</searchLink><br /><searchLink fieldCode="DE" term="%22Quark+models%22">Quark models</searchLink><br /><searchLink fieldCode="DE" term="%22Baryons%22">Baryons</searchLink><br /><searchLink fieldCode="DE" term="%22Quantum+chromodynamics%22">Quantum chromodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Forecasting%22">Forecasting</searchLink><br /><searchLink fieldCode="DE" term="%22Mesons%22">Mesons</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: In experiments, only one doubly charmed baryon Ξ cc + + has been successfully identified to date. The LHCb collaboration is poised to discover other doubly heavy baryons, Ξ cc + and Ξ bc + , necessitating a comprehensive study of doubly heavy baryons from various perspectives. Such investigations will elucidate the properties of the newly discovered states and facilitate the search for other doubly heavy baryons as predicted in the quark model. In this paper, we explore the strong coupling between the doubly heavy baryon, singly heavy baryon, and heavy meson, B Q Q ′ B Q M Q ′ , using the light-cone QCD sum rules approach. We analytically and numerically calculate the strong coupling, B Q Q ′ B Q M Q ′ , utilizing the light-cone distribution amplitudes of the singly heavy baryon B Q . Numerical predictions for these strong couplings are provided, along with an error analysis. Our theoretical findings can be employed to examine the strong and weak decay dynamics of doubly heavy baryons. Furthermore, our results may offer experimentalists a valuable tool for analyzing data on the strong coupling constants among hadronic multiplets. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1140/epjc/s10052-025-14229-3
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      – Code: eng
        Text: English
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        PageCount: 14
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    Subjects:
      – SubjectFull: Coupling constants
        Type: general
      – SubjectFull: Quark models
        Type: general
      – SubjectFull: Baryons
        Type: general
      – SubjectFull: Quantum chromodynamics
        Type: general
      – SubjectFull: Forecasting
        Type: general
      – SubjectFull: Mesons
        Type: general
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      – TitleFull: The strong coupling constants of doubly heavy baryons with heavy mesons.
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            NameFull: Hu, Xiao-Hui
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            NameFull: Zhou, Quan-Yu
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            NameFull: Xing, Ye
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            NameFull: Shi, Yu-Ji
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            – D: 01
              M: 06
              Text: Jun2025
              Type: published
              Y: 2025
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            – TitleFull: European Physical Journal C -- Particles & Fields
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