Speaker
Yoichi Ikeda
(RIKEN)
Description
One of the interesting subjects in hadron physics is to look for the multiquark configurations. One of candidates is the H-dibaryon (udsuds), and the possibility of the bound H-dibaryon has been recently studied from lattice QCD.
We also extend the HAL QCD method to define potential on the lattice between baryons to meson-meson systems including charm quarks to search for the bound tetraquark Tcc (ud ¥bar{c} ¥bar{c}) and Tcs (ud ¥bar{c} ¥bar{c}).
In the presentation, after reviewing the HAL QCD method, we report the results on the H-dibaryon, the tetraquark Tcc (ud ¥bar{c} ¥bar{c}) and Tcs (ud ¥bar{c} ¥bar{c}), where we have employed the relativistic heavy quark action to treat the charm quark dynamics with pion masses, m_{¥pi}=410, 570, 700 MeV.
Author
Yoichi Ikeda
(RIKEN)
