Baryon interactions from lattice QCD with physical masses -- S=-2 sector --

Kenji Sasaki , Sinya Aoki , Takumi Doi , Shinya Gongyo , Tetsuo Hatsuda , Yoichi Ikeda , Takashi Inoue , Takumi Iritani

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Noriyoshi Ishii Takaya Miyamoto Keiko Murano

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classification ✦ hep-lat

keywords baryoninteractionsinteractionlatticephysicalalmostbaryon-baryoncalculated

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The strangeness $S=-2$ baryon-baryon interaction is investigated directly from the fundamental theory of the strong interaction, QCD. The HAL QCD method enables us to extract baryon interactions from the Nambu-Bethe-Salpeter wave functions without using any experimental information. We present our latest result on the $S = -2$ baryon interactions and discuss the H-dibaryon state using potentials which are calculated by using the (almost) physical point gauge configurations with large lattice volume of$(8.1{\rm{fm}})^4$ generated on the K-computer.

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Baryon interactions from lattice QCD with physical masses -- S=-2 sector --

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