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

Research output: Contribution to journalConference article

Abstract

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.

Original languageEnglish
Article number086
JournalProceedings of Science
Volume14-18-July-2015
Publication statusPublished - Jan 1 2015
Externally publishedYes
Event33rd International Symposium on Lattice Field Theory, LATTICE 2015 - Kobe, Japan
Duration: Jul 14 2015Jul 18 2015

All Science Journal Classification (ASJC) codes

  • General

Fingerprint Dive into the research topics of 'First results of baryon interactions from lattice QCD with physical masses (1) - General overview and two-nucleon forces'. Together they form a unique fingerprint.

  • Cite this

    Doi, T., Aoki, S., Gongyo, S., Hatsuda, T., Ikeda, Y., Inoue, T., Iritani, T., Ishii, N., Miyamoto, T., Murano, K., Nemura, H., & Sasaki, K. (2015). First results of baryon interactions from lattice QCD with physical masses (1) - General overview and two-nucleon forces. Proceedings of Science, 14-18-July-2015, [086].