First results of baryon interactions from lattice QCD with physical masses (1) - General overview and two-nucleon forces

Takumi Doi, Sinya Aoki, Shinya Gongyo, Tetsuo Hatsuda, Yoichi Ikeda, Takashi Inoue, Takumi Iritani, Noriyoshi Ishii, Takaya Miyamoto, Keiko Murano, Hidekatsu Nemura, Kenji Sasaki

研究成果: Contribution to journalConference article査読

抄録

We present the lattice QCD studies for baryon-baryon interactions for the first time with (almost) physical quark masses. Nf = 2+1 gauge configurations are generated with the Iwasaki gauge action and nonperturbatively O(a)-improved Wilson quark action with stout smearing on the lat-Tice of (96a)4 ≃ (8:2fm)4 with a ≃ 0:085 fm, where mπ ≃ 146 MeV and mk ≃ 525 MeV. Baryon forces are calculated from Nambu-Bethe-Salpeter (NBS) correlation functions using the time- dependent HAL QCD method. In this report, we first give the general overview of the theoretical frameworks essential to the physical point calculation of baryon forces. We then present the nu- merical results for the two-nucleon central and tensor forces in 3S1-3D1 coupled channel and the central force in 1S0 channel. In particular, a clear signal is obtained for the tensor force.

本文言語英語
論文番号086
ジャーナルProceedings of Science
14-18-July-2015
出版ステータス出版済み - 2015
外部発表はい
イベント33rd International Symposium on Lattice Field Theory, LATTICE 2015 - Kobe, 日本
継続期間: 7 14 20157 18 2015

All Science Journal Classification (ASJC) codes

  • 一般

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