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October 19, 20250 citationsOpen Access

Emergence of charm-strange dibaryons with negative parity via baryon-baryon interactions

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YCYina CuiXTXiao-Mei TangQHQi Huang

Key Points

  • Predicted several molecular candidates from coupled channel analysis, notably a 0(1-) $Ξ_c^{ ext{'} }N$ molecule.
  • Significant coupled channel effects observed in the formation of $Σ_cΣ$ with quantum numbers 1(1-).
  • Phase shift analysis confirmed the existence of dissipative resonances in coupled baryon systems, enhancing predictions.
  • Identified resonant dibaryons including several shape-type and Feshbach-type resonances with varying quantum numbers.

Abstract

Within the framework of the one-boson-exchange model, we systematically perform a coupled channel analysis of the P-wave interactions between a charm baryon and light baryon, the involved channels include ΞcN, ΛcΣ, Ξc^N, ΣcΛ, Ξc^*N, Σc^*Λ, ΣcΣ, and Σc^*Σ. Our results can predict several possible molecular candidates, such as a Ξc^N molecule with I (JP) =0 (1^-), Ξc^*N molecules with 0 (0^-, 1^-, 2^-), ΣcΣ molecules with 0 (1^-) and 1 (1^-), and Σc^*Σ molecules with 0 (0^-, 1^-, 2^-), and 1 (2^-). The coupled channel effects significantly influence the formation of the ΣcΣ molecule with 1 (1^-). Furthermore, we analyze the phase shifts for these coupled channel systems. Our analysis not only confirms the existence of the predicted molecules but also identifies potential resonant dibaryons, including a ΣcΣ shape-type resonance with 1 (1^-), a Σc^*Σ shape-type resonance with 1 (0^-), a ΛcΣ/ΣcΣ coupled Feshbach-type resonance with 1 (1^-), and ΛcΣ/Σc^*Σ coupled Feshbach-type resonances with 1 (0^-, 2^-).

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Cite This Study

Cui et al. (2025) studied this question.

synapsesocial.com/papers/68f4b10d3d9d770bbc6970b7https://doi.org/10.48550/arxiv.2507.12958
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