Baryon-baryon interactions in the flavor SU(3) limit from full QCD simulations on the lattice

Takashi Inoue, Noriyoshi Ishi, Sinya Aoki, Takumi Doi, Tetsuo Hatsuda, Yoichi Ikeda, Keiko Murano, Hidekatsu Nemura, Kenji Sasaki

研究成果: Contribution to journalArticle査読

101 被引用数 (Scopus)

抄録

We investigate baryon-baryon (BB) interactions in the 3-flavor full QCD simulations with degenerate quark masses for all flavors. The BB potentials in the orbital S-wave are extracted from the Nambu-Bethe-Salpeter wave functions measured on the lattice. We observe strong flavor-spin dependences of the BB potentials at short distances. In particular, a strong repulsive core exists in the flavor-octet and spin-singlet channel (the 8S representation), while an attractive core appears in the flavor singlet channel (the 1 representation). We discuss the relation of such flavor-spin dependence with the Pauli exclusion principle at the quark level. The possible existence of an H-dibaryon resonance above the AA threshold is also discussed.

本文言語英語
ページ(範囲)591-603
ページ数13
ジャーナルProgress of Theoretical Physics
124
4
DOI
出版ステータス出版済み - 10 2010
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(その他)

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