4–7 Aug 2020
online
Asia/Tokyo timezone

Studies on meson-baryon interactions in the HAL QCD method with all-to-all propagators

4 Aug 2020, 16:40
20m
online

online

Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Kotaro Murakami (*) (Yukawa Institute for Theoretical Physics, Kyoto University)

Description

We investigate meson-baryon interactions in the HAL QCD method with all-to-all propagators using the stochastic estimations. We mainly report the analysis of the S-wave kaon-nucleon interactions at mπ570 MeV. Since there are no quark-antiquark creation/annihilation processes in this system, all-to-all propagators merely play a role in increasing statistics. In addition, we present the preliminary results for the P-wave pion-nucleon interaction in the I=3/2 channel using the Δ source operator on a small volume at mπ870 MeV, which has a bound state corresponding to the Δ(1232) state.

Primary author

Kotaro Murakami (*) (Yukawa Institute for Theoretical Physics, Kyoto University)

Co-authors

Presentation materials