Study of molecular ND bound states in the Bethe-Salpeter equation approach

We study the Λc(2595)+ and Σc(2800)0 states as the ND bound systems in the Bethe-Salpeter formalism in the ladder and instantaneous approximations. With the kernel induced by ρ, ω and σ exchanges, we solve the Bethe-Salpeter equations for the ND bound systems numerically and find that the bound stat...

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Bibliographic Details
Published in:Physical review. D 2018-05, Vol.97 (9)
Main Authors: Wang, Zhen-Yang, Qi, Jing-Juan, Guo, Xin-Heng, Wei, Ke-Wei
Format: Article
Language:English
Subjects:
Bethe-Salpeter equation
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Summary:We study the Λc(2595)+ and Σc(2800)0 states as the ND bound systems in the Bethe-Salpeter formalism in the ladder and instantaneous approximations. With the kernel induced by ρ, ω and σ exchanges, we solve the Bethe-Salpeter equations for the ND bound systems numerically and find that the bound states may exist. We assume that the observed states Λc(2595)+ and Σc(2800)0 are S-wave ND molecular bound states and calculate the decay widths of Λc(2595)+→Σc0π+ and Σc(2800)0→Λc+π−.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.97.094025