Year: 2025
Type: article
Abstract: In the present work, we systematically study various bottom-strange molecular pentaquarks to search for possible bound states and resonances by adopting a one boson exchange model within the complex scaling method. According to our calculations, we predict several bound and resonant states for bottom baryon $$Y_{b}(\Lambda _b,\Sigma _b) \bar{K}^{(*)}$$ Y b ( Λ b , Σ b ) K ¯ ( ∗ ) and $$Y_{b} K^{(*)}$$ Y b K ( ∗ ) systems. In particular, a bound state in the $$I(J^P)=1/2(1/2^-)\Sigma _b \bar{K}/\Lambda _b \bar{K}^*/\Sigma _b \bar{K}^*$$ I ( J P ) = 1 / 2 ( 1 / 2 - ) Σ b K ¯ / Λ b K ¯ ∗ / Σ b K ¯ ∗ system may correspond to the particle $$\Xi _b(6227)$$ Ξ b ( 6227 ) . Meanwhile, the predicted bound state with mass in the range of $$6303\sim 6269~\textrm{MeV}$$ 6303 ∼ 6269 MeV in the $$I(J^P)=1/2(1/2^-)\Sigma _bK/\Lambda _bK^*/\Sigma _bK^*$$ I ( J P ) = 1 / 2
Source: The European Physical Journal C
Authors: Qing-Fu Song, Qi-Fang Lü, Xiaonu Xiong
Institutions: Central South University, Hunan Normal University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4414357465