EPJ Web of Conferences (Jan 2018)

Lattice QCD studies on baryon interactions in the strangeness -2 sector with physical quark masses

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

DOI
https://doi.org/10.1051/epjconf/201817505010
Journal volume & issue
Vol. 175
p. 05010

Abstract

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We investigate baryon-baryon (BB) interactions in the strangeness S = −2 sector via the coupled-channel HAL QCD method which enables us to extract the scattering observables from Nambu-Bethe-Salpeter (NBS) wave function on the lattice. The simulations are performed with (almost) physical quark masses (mπ = 146MeV) and a huge lattice volume of La = 8.1fm. We discuss the fate of H-dibaryon state through the ΛΛ and NΞ coupled-channel scatterings