Investigating the p-Ω interactions and correlation functions
作者机构：Department of Physics Nanjing Normal University School of Science Guizhou University of Engineering Science
出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学:物理学 力学 天文学(英文版))
年 卷 期：2025年
核心收录：
学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学]
基 金：supported by the National Natural Science Foundation of China (Grant Nos. 11675080, 11775118, 12305087, 11535005, and 11865019) supported by the Postgraduate Research and Practice Innovation Program of Jiangsu Province (Grant No. KYCX23 1675) the Doctoral Dissertation Topic Funding Program (Grant No. YXXT23-027) supported by the Start-up Funds of Nanjing Normal University (Grant No. 184080H201B20)
摘 要：Motivated by experimental measurements, we investigate the p-Ω correlation functions and interactions on the basis of a quark model. By solving the inverse scattering problem with channel coupling, we renormalize the coupling to other channels into an effective single-channel p-Ω potentials. The effects of Coulomb interaction and spin-averaging are also discussed. According to our results, the depletion of the p-Ω correlation functions, which is attributed to the JP= 2+bound state not observed in the ALICE Collaboration s measurements(Nature 588, 232（2020）), can be explained by the contribution of the attractive JP= 1+component in spin-averaging. So far, we have provided a consistent description of the p-Ω system from the perspective of the quark model, including the energy spectrum, scattering phase shifts, and correlation functions. The existence of the p-Ω bound state has been supported by all three aspects. Additionally, a sign of the p-Ω correlation function s subtle sub-unity part can be seen in experimental measurements, which warrants more precise verification in the future.
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