Speaker
Kenta Miyahara
(Kyoto university)
Description
Aiming at quantitative studies of Kbar nuclei, we construct the reliable KbarN local potential. Based on the chiral coupled-channel approach, the chiral unitary approach, we establish a new construction method which respects the behavior of the scattering amplitude in the complex energy plane. This method is employed to the recent experimental data of the energy shift of the kaonic hydrogen by SIDDHARTA. The high precision measurement reduces the uncertainty of the KbarN scattering amplitude below the KbarN threshold, and enables the quantitative discussion about the systems with Kbar and nucleons. As the first application of the new local potential, we calculate the spacial structure of the Lambda(1405), and the K^-p correlation function in the relativistic heavy ion collisions.
