TY - JOUR
T1 - Baryon interactions from lattice QCD with physical masses - Strangeness S = -1 sector
AU - Nemura, Hidekatsu
AU - Aoki, Sinya
AU - Doi, Takumi
AU - Gongyo, Shinya
AU - Hatsuda, Tetsuo
AU - Ikeda, Yoichi
AU - Inoue, Takashi
AU - Iritani, Takumi
AU - Ishii, Noriyoshi
AU - Miyamoto, Takaya
AU - Sasaki, Kenji
N1 - Funding Information:
We thank all collaborators in this project, above all, members of PACS Collaboration for the gauge configuration generation. The lattice QCD calculations have been performed on the K computer at RIKEN, AICS (hp120281, hp130023, hp140209, hp150223, hp150262, hp160211, hp170230), HOKUSAI FX100 computer at RIKEN, Wako ( G15023, G16030, G17002) and HA-PACS at University of Tsukuba (14a-25, 15a-33, 14a-20, 15a-30). We thank ILDG/JLDG [25] which serves as an essential infrastructure in this study. This work is supported in part by MEXT Grant-in-Aid for Scientific Research (JP16K05340, JP25105505), and SPIRE (Strategic Program for Innovative Research) Field 5 project and “Priority issue on Post-K computer” (Elucidation of the Fundamental Laws and Evolution of the Universe) and Joint Institute for Computational Fundamental Science (JICFuS).
Publisher Copyright:
© The Authors, published by EDP Sciences, 2018.
PY - 2018/3/26
Y1 - 2018/3/26
N2 - We present our recent results of baryon interactions with strangeness S = -1 based on Nambu-Bethe-Salpeter (NBS) correlation functions calculated fromlattice QCD with almost physical quark masses corresponding to (mk,mk) ≈ (146, 525) MeV and large volume (La)4 ≈ (96a)4 ≈ (8.1 fm)4. In order to perform a comprehensive study of baryon interactions, a large number of NBS correlation functions from NN to ΞΞ are calculated simultaneously by using large scale computer resources. In this contribution, we focus on the strangeness S = -1 channels of the hyperon interactions by means of HAL QCD method. Four sets of three potentials (the 3S1 - 3 D1 central, 3S1 - 3 D1 tensor, and the 1S0 central potentials) are presented for the ∑ N - ∑ N (the isospin I = 3/2) diagonal, the Λ N - Λ N diagonal, the Λ N → ∑ N transition, and the ∑ N - ∑ N (I = 1/2) diagonal interactions. Scattering phase shifts for ∑ N (I = 3/2) system are presented.
AB - We present our recent results of baryon interactions with strangeness S = -1 based on Nambu-Bethe-Salpeter (NBS) correlation functions calculated fromlattice QCD with almost physical quark masses corresponding to (mk,mk) ≈ (146, 525) MeV and large volume (La)4 ≈ (96a)4 ≈ (8.1 fm)4. In order to perform a comprehensive study of baryon interactions, a large number of NBS correlation functions from NN to ΞΞ are calculated simultaneously by using large scale computer resources. In this contribution, we focus on the strangeness S = -1 channels of the hyperon interactions by means of HAL QCD method. Four sets of three potentials (the 3S1 - 3 D1 central, 3S1 - 3 D1 tensor, and the 1S0 central potentials) are presented for the ∑ N - ∑ N (the isospin I = 3/2) diagonal, the Λ N - Λ N diagonal, the Λ N → ∑ N transition, and the ∑ N - ∑ N (I = 1/2) diagonal interactions. Scattering phase shifts for ∑ N (I = 3/2) system are presented.
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U2 - 10.1051/epjconf/201817505030
DO - 10.1051/epjconf/201817505030
M3 - Conference article
AN - SCOPUS:85045154497
SN - 2101-6275
VL - 175
JO - EPJ Web of Conferences
JF - EPJ Web of Conferences
M1 - 05030
T2 - 35th International Symposium on Lattice Field Theory, Lattice 2017
Y2 - 18 June 2017 through 24 June 2017
ER -