Ponente
Descripción
The $K \Lambda$ interactions in coupled channels are investigate around the energy region of $N(1535)$ resonance through femtoscopic correlation functions within the Koonin-Pratt formalism, 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. The analysis shows that the $\pi N$ channel becomes important to the $K \Lambda$ correlation function through coupled channel effects, even if its mass threshold is far from the energy region of the $N(1535)$ resonance. It is worthy to mention that, with the picture that the $N(1535)$ is a dynamically generated state, one can get a good reproduction of the experimental data on the $K \Lambda$ correlation function.
