Baryon interactions from lattice QCD with physical quark masses – Nuclear forces and ΞΞ forces

We present the latest lattice QCD results for baryon interactions obtained at nearly physical quark masses. N f = 2 + 1 nonperturbatively O(a) -improved Wilson quark action with stout smearing and Iwasaki gauge action are employed on the lattice of (96a) 4 ≃(8.1fm) 4 with a -1 ≃2.3 GeV, where m π ≃1...

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Bibliographic Details
Published inEPJ Web of Conferences Vol. 175; p. 5009
Main Authors Doi, Takumi, Iritani, Takumi, Aoki, Sinya, Gongyo, Shinya, Hatsuda, Tetsuo, Ikeda, Yoichi, Inoue, Takashi, Ishii, Noriyoshi, Miyamoto, Takaya, Nemura, Hidekatsu, Sasaki, Kenji
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2018
Subjects
Baryons
Collision dynamics
Galling
Ionic collisions
Quantum chromodynamics
Quarks
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Summary:We present the latest lattice QCD results for baryon interactions obtained at nearly physical quark masses. N f = 2 + 1 nonperturbatively O(a) -improved Wilson quark action with stout smearing and Iwasaki gauge action are employed on the lattice of (96a) 4 ≃(8.1fm) 4 with a -1 ≃2.3 GeV, where m π ≃146 MeV and m K ≃525 MeV. In this report, we study the two-nucleon systems and two-Ξ systems in 1 S 0 channel and 3 S 1 - 3 D 1 coupled channel, and extract central and tensor interactions by the HAL QCD method. We also present the results for the NΩ interaction in 5 S 2 channel which is relevant to the NΩ pair-momentum correlation in heavy-ion collision experiments.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201817505009