We investigate the KΛ strong interaction dynamics around the energy region of N*(1535) resonance through femtoscopic correlation functions within the Koonin-Pratt formalism, where coupled-channel effects of πN, KΛ, KΣ and ηN channels are taken into account, by means of which the N*(1535) resonance can be dynamically generated in the chiral unitary approach. Two-body scattering amplitudes are calculated using the chiral unitary approach, and the corresponding wave functions and correlation functions are obtained. Our analysis shows that the πN channel becomes important to the K+Λ correlation function through coupled channel effects, even if its mass threshold is far from the energy region of the N*(1535). Furthermore, with the picture that the N*(1535) is a dynamically generated state, we can get a good reproduction of the experimental data on the K+Λ correlation function. This work establishes femtoscopic correlation functions as a sensitive probe for coupled-channel dynamics and validates the Koonin-Pratt framework in multichannel hadronic systems, offering critical insights into some exotic hadron states and strong interaction mechanisms.
Liu et al. (Mon,) studied this question.