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arXiv · 1512.04199

Towards Lattice QCD Baryon Forces at the Physical Point: First Results

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

Lattice QCD calculations of baryon forces are performed for the first time with (almost) physical quark masses. $N_f = 2+1$ dynamical clover fermion gauge configurations are generated at the lattice spacing of $a \simeq 0.085$ fm on a $(96 a)^4 \simeq (8.2 {\rm fm})^4$ lattice with quark masses corresponding to $(m_π, m_K) \simeq (146, 525)$ MeV. Baryon forces are calculated using the time-dependent HAL QCD method. In this report, we study $ΞΞ$ and $NN$ systems both in $^1S_0$ and $^3S_1$-$^3D_1$ channels, and the results for the central and tensor forces as well as phase shifts in the $ΞΞ$ $(^1S_0)$ channel are presented.

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Takumi Doi, Sinya Aoki, Shinya Gongyo, Tetsuo Hatsuda, Yoichi Ikeda, Takashi Inoue, Takumi Iritani, Noriyoshi Ishii, Takaya Miyamoto, Keiko Murano, Hidekatsu Nemura, Kenji Sasaki. 2016-07-14. Towards Lattice QCD Baryon Forces at the Physical Point: First Results. https://arxiv.org/abs/1512.04199

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