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PreprintCC BY 4.0arXiv

D(*)Δ interactions and the molecular interpretation of Σc(3200)0

  • Rui Chen
  • Yu-Yue Cui
  • Fu-Lai Wang
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Abstract

Inspired by the recent observation of the Σc(3200)0 baryon in the Λc+π- invariant mass spectrum by the LHCb Collaboration, we perform a comprehensive investigation of the D(*)Δ interactions within the one-boson-exchange framework. Our results show that the D*Δ molecule with I(JP)=1(1/2-) can be regarded as the most natural candidate for the Σc(3200), and predict the existence of several D*Δ molecular partners with I(JP)=1(3/2-, 5/2-) and 2(1/2±, 3/2±, 5/2-). After including the coupled channel effects between DΔ and D*Δ, several shallowly bound DΔ-dominated molecular candidates also emerge, especially for the I(JP)=1,2(3/2-) and the 2(1/2+,3/2+) systems. These results provide a unified molecular interpretation of the newly observed Σc(3200)0 and useful guidance for future experimental searches for exotic charmed-baryon states. We expect the high-statistics data from the LHCb Upgrade and Belle~II runs will directly test these predictions.

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Cite

BibTeXRIS
BibTeX
@misc{chen2026interactions,
  title = {{$D^(*)Δ$ interactions and the molecular interpretation of $Σ_c(3200)^0$}},
  author = {Rui Chen and Yu-Yue Cui and Fu-Lai Wang},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.17952},
  eprint = {2609.17952},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.17952},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - D^(*)Δ interactions and the molecular interpretation of Σ_c(3200)^0
AU  - Rui Chen
AU  - Yu-Yue Cui
AU  - Fu-Lai Wang
PY  - 2026
DA  - 2026/09/16
PB  - arXiv
DO  - 10.48550/arxiv.2609.17952
UR  - https://arxiv.org/abs/2609.17952
AB  - Inspired by the recent observation of the Σ_c(3200)^0 baryon in the Λ_c^+π^- invariant mass spectrum by the LHCb Collaboration, we perform a comprehensive investigation of the D^(*)Δ interactions within the one-boson-exchange framework. Our results show that the D^*Δ molecule with I(J^P)=1(1/2^-) can be regarded as the most natural candidate for the Σ_c(3200), and predict the existence of several D^*Δ molecular partners with I(J^P)=1(3/2^-, 5/2^-) and 2(1/2^±, 3/2^±, 5/2^-). After including the coupled channel effects between DΔ and D^*Δ, several shallowly bound DΔ-dominated molecular candidates also emerge, especially for the I(J^P)=1,2(3/2^-) and the 2(1/2^+,3/2^+) systems. These results provide a unified molecular interpretation of the newly observed Σ_c(3200)^0 and useful guidance for future experimental searches for exotic charmed-baryon states. We expect the high-statistics data from the LHCb Upgrade and Belle~II runs will directly test these predictions.
ER  -