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Pc(4440) and Pc(4457) decay into D¯Σc and D¯Λc and the spin of the Pc states.

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Title: Pc(4440) and Pc(4457) decay into D¯Σc and D¯Λc and the spin of the Pc states.
Authors: Yang, Zi-Ying1 (AUTHOR), Song, Jing1,2,3,4 (AUTHOR) Song-Jing@buaa.edu.cn, Liang, Wei-Hong5,6 (AUTHOR) liangwh@gxnu.edu.cn, Oset, Eulogio3,5 (AUTHOR) oset@ific.uv.es
Source: European Physical Journal C -- Particles & Fields. Sep2025, Vol. 85 Issue 9, p1-12. 12p.
Subjects: Pentaquark, Vector mesons, Particle interactions, Decay constants, Angular momentum (Mechanics), Baryons, Feynman diagrams
Abstract: We address the issue of the width and spin assignment of the P c (4440) and P c (4457) pentaquark states. We calculate the partial decays widths of the particles into J / ψ N , D ¯ Σ c and D ¯ Λ c with the first one obtained within a unitary approach with the coupled channels of J / ψ N and D ¯ ∗ Σ c with the interaction driven by vector meson exchange, and the last two by means of triangle diagrams involving pion exchange. The widths obtained depend much on the spin of the particles and we study the possible scenarios for spin assignment, favoring the 1 / 2 - , 3 / 2 - order, although the large experimental errors do not rule out the opposite scenario. We predict values for decays in different channels and show that their precise determination would allow to decide on the spin of the states. [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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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Pc(4440) and Pc(4457) decay into D¯Σc and D¯Λc and the spin of the Pc states.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Yang%2C+Zi-Ying%22">Yang, Zi-Ying</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Jing%22">Song, Jing</searchLink><relatesTo>1,2,3,4</relatesTo> (AUTHOR)<i> Song-Jing@buaa.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Liang%2C+Wei-Hong%22">Liang, Wei-Hong</searchLink><relatesTo>5,6</relatesTo> (AUTHOR)<i> liangwh@gxnu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Oset%2C+Eulogio%22">Oset, Eulogio</searchLink><relatesTo>3,5</relatesTo> (AUTHOR)<i> oset@ific.uv.es</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>. Sep2025, Vol. 85 Issue 9, p1-12. 12p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Pentaquark%22">Pentaquark</searchLink><br /><searchLink fieldCode="DE" term="%22Vector+mesons%22">Vector mesons</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+interactions%22">Particle interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Decay+constants%22">Decay constants</searchLink><br /><searchLink fieldCode="DE" term="%22Angular+momentum+%28Mechanics%29%22">Angular momentum (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Baryons%22">Baryons</searchLink><br /><searchLink fieldCode="DE" term="%22Feynman+diagrams%22">Feynman diagrams</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: We address the issue of the width and spin assignment of the P c (4440) and P c (4457) pentaquark states. We calculate the partial decays widths of the particles into J / ψ N , D ¯ Σ c and D ¯ Λ c with the first one obtained within a unitary approach with the coupled channels of J / ψ N and D ¯ ∗ Σ c with the interaction driven by vector meson exchange, and the last two by means of triangle diagrams involving pion exchange. The widths obtained depend much on the spin of the particles and we study the possible scenarios for spin assignment, favoring the 1 / 2 - , 3 / 2 - order, although the large experimental errors do not rule out the opposite scenario. We predict values for decays in different channels and show that their precise determination would allow to decide on the spin of the states. [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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        Value: 10.1140/epjc/s10052-025-14639-3
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      – Code: eng
        Text: English
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        PageCount: 12
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      – SubjectFull: Pentaquark
        Type: general
      – SubjectFull: Vector mesons
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      – SubjectFull: Particle interactions
        Type: general
      – SubjectFull: Decay constants
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      – SubjectFull: Angular momentum (Mechanics)
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      – SubjectFull: Baryons
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      – SubjectFull: Feynman diagrams
        Type: general
    Titles:
      – TitleFull: Pc(4440) and Pc(4457) decay into D¯Σc and D¯Λc and the spin of the Pc states.
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            NameFull: Yang, Zi-Ying
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            NameFull: Song, Jing
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            NameFull: Liang, Wei-Hong
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            – D: 01
              M: 09
              Text: Sep2025
              Type: published
              Y: 2025
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