Baryon interactions from lattice QCD with physical masses - S = -3 sector: Ξ∑ and Ξ∑ -Λ∑

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

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2 Citations (Scopus)

Abstract

Hyperon-nucleon and hyperon-hyperon interactions are important in studying the properties of hypernuclei in hypernuclear physics. However, unlike the nucleons which are quite stable, hyperons are unstable so that the direct scattering experiments are difficult, which leads to the large uncertainty in the phenomenological determination of hyperon potentials. In this talk, we use the gauge configurations generated at the (almost) physical point (mπ = 146 MeV) on a huge spatial volume (8:1fm)4 to present our latest result on the hyperon-hyperon potentials in S = -3 sector (Ξ∑ single channel and Ξ∑ - ΞΛ coupled channel) from the Nambu-Bethe-Salpeter wave functions based on the HAL QCD method with improved statistics.

Original languageEnglish
Article number05013
JournalEPJ Web of Conferences
Volume175
DOIs
Publication statusPublished - Mar 26 2018
Externally publishedYes
Event35th International Symposium on Lattice Field Theory, Lattice 2017 - Granada, Spain
Duration: Jun 18 2017Jun 24 2017

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Ishii, N., Aoki, S., Doi, T., Gongyo, S., Hatsuda, T., Ikeda, Y., Inoue, T., Iritani, T., Miyamoto, T., Nemura, H., & Sasaki, K. (2018). Baryon interactions from lattice QCD with physical masses - S = -3 sector: Ξ∑ and Ξ∑ -Λ∑. EPJ Web of Conferences, 175, [05013]. https://doi.org/10.1051/epjconf/201817505013