Interaction between two hadrons in lattice QCD

Abstract

I report recent developments on hadron interactions in lattice QCD by the HAL QCD method. As an introduction, I summarize the lattice community's consensus on the absence of the deeply bound dinucleons at heavier pion masses. We then present 4 results by the HAL QCD method using $2+1$ flavor QCD gauge configurations at $m_{\ddot{I}}€\simeq 146$ MeV and $a\simeq 0.0846$ fm, which are the $\hat{I}›\hat{I}›-N\hat{I}ž$ interactions, $N\hat{I}\text{c◯}$ dibaryon, the tetra-quark state $T_{cc}$ and the $N-\ddot{I}•$ interaction with the 2-pion tail. A brief summary follows.

16 pages, 9 figures (19 actual figures), A plenary talk presented at the 11th International Workshop on Chiral Dynamics (CD2024), 26-30 August, 2024, Ruhr University Bochum, Germany