The recoil corrections, correlation functions and possible double-strange hadronic molecules
Year: 2025
Type: article
Abstract: In this work, we perform a systematic investigation of K ( * ) K ( * ) interactions within a one-boson-exchange model. The framework incorporates both S − D wave mixing and coupled-channel effects, with effective potentials retained up to order O ( 1 / M 2 ) . By solving the coupled channel Schrödinger equations, we can predict two double-strange molecular candidates: a K K * molecule with I ( J P ) = 0 ( 1 + ) and a K * K * molecule with 0 ( 1 + ) . Our results also show that the recoil corrections play a crucial role in the formation of these two molecular candidates. Furthermore, the S − D wave mixing effects contribute positively to the formation process. As a byproduct of this analysis, we extend our study to K ( * ) K ¯ ( * ) interactions with the same model. Our findings suggest that the K K ¯ * states with 0 ( 1 + − , 1 + + ) and K * K ¯ * states with 0 ( 0 + + , 1 + − , 2 + + ) can be promising molecular candidates. Additionally, we analyze the correlations between the constituent mesons, the resulting correlation functions provide additional support for our predictions of both double-strange and strangonium-like molecular states.
Source: Physics Letters B
Authors: Xiao-Mei Tang, Li-Cheng Sheng, Qi Huang, Rui Chen
Institutions: Hunan Normal University, Nanjing Normal University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
Awards: G3349699977, G6983970224, G8372772758
OpenAlex ID: W4414414001