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arXiv · 1702.06241

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·Noriyoshi Ishii·Takaya Miyamoto·Keiko Murano
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Abstract

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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Kenji Sasaki, Sinya Aoki, Takumi Doi, Shinya Gongyo, Tetsuo Hatsuda, Yoichi Ikeda, Takashi Inoue, Takumi Iritani, Noriyoshi Ishii, Takaya Miyamoto, Keiko Murano. 2017-02-21. Baryon interactions from lattice QCD with physical masses -- $S=-2$ sector --. https://arxiv.org/abs/1702.06241

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