TY - JOUR
T1 - Nucleon isovector couplings from 2+1 flavor lattice QCD at the physical point
AU - Tsukamoto, Natsuki
AU - Aoki, Yasumichi
AU - Ishikawa, Ken Ichi
AU - Kuramashi, Yoshinobu
AU - Shintani, Eigo
AU - Sasaki, Shoichi
AU - Yamazaki, Takeshi
N1 - Funding Information:
N. Tsukamoto is supported in part by the Joint Research Program of RIKEN Center for Computational Science (R-CCS). The present research used computational resources through the HPCI System Research Project (hp140155, hp150135, hp160125, hp170022, hp180051, hp180072, hp180126, hp190025, hp190055). This work is supported in part by Grant-in-Aid for Scientific Research (Nos. 16K05320, 16H06002, 18K03605, 19H01892) and the U.S.-Japan Science and Technology Cooperation Program in High Energy Physics for FY2018.
Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
PY - 2019
Y1 - 2019
N2 - We present results on the axial, scalar and tensor isovector-couplings of the nucleon from 2+1 flavor lattice QCD with physical light quarks (mπ = 135 MeV) in large spatial volume of (10.8 fm)3. The calculations are carried out with the PACS10 gauge configurations generated by the PACS Collaboration with the stout-smeared O(a) improved Wilson fermions and Iwasaki gauge action at β = 1.82 corresponding to the lattice spacing of 0.084 fm. For the renormalization, we use the RI/SMOM scheme, a variant of Rome-Southampton RI/MOM scheme with reduced systematic errors, as the intermediate scheme. We then evaluate our final results in the MS scheme at a scale of 2 GeV, using the continuum perturbation theory for the matching scale of RI/SMOM and MS schemes and running.
AB - We present results on the axial, scalar and tensor isovector-couplings of the nucleon from 2+1 flavor lattice QCD with physical light quarks (mπ = 135 MeV) in large spatial volume of (10.8 fm)3. The calculations are carried out with the PACS10 gauge configurations generated by the PACS Collaboration with the stout-smeared O(a) improved Wilson fermions and Iwasaki gauge action at β = 1.82 corresponding to the lattice spacing of 0.084 fm. For the renormalization, we use the RI/SMOM scheme, a variant of Rome-Southampton RI/MOM scheme with reduced systematic errors, as the intermediate scheme. We then evaluate our final results in the MS scheme at a scale of 2 GeV, using the continuum perturbation theory for the matching scale of RI/SMOM and MS schemes and running.
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M3 - Conference article
AN - SCOPUS:85094788857
VL - 363
JO - Proceedings of Science
JF - Proceedings of Science
SN - 1824-8039
M1 - 132
T2 - 37th International Symposium on Lattice Field Theory, LATTICE 2019
Y2 - 16 June 2019 through 22 June 2019
ER -