TY - JOUR
T1 - Nucleon form factors near the physical point in 2+1 flavor QCD
AU - Ishikawa, K. I.
AU - Kuramashi, Y.
AU - Tsukamoto, N.
AU - Sasaki, S.
AU - Yamazaki, T.
AU - Ukawa, A.
N1 - Funding Information:
Numerical calculations for the present work have been carried out on the FX10 supercomputer system at Information Technology Center of the University of Tokyo, on the HA-PACS and COMA cluster systems under the "Interdisciplinary Computational Science Program" of Center for Computational Science at University of Tsukuba, on HOKUSAI GreatWave at Advanced Center for Computing and Communication of RIKEN, and on the computer facilities of the Research Institute for Information Technology of Kyushu University. This research used computational resources of the HPCI system provided by Information Technology Center of the University of Tokyo, Institute for Information Management and Communication of Kyoto University, the Information Technology Center of Nagoya University, and RIKEN Advanced Institute for Computational Science through the HPCI System Research Project (Project ID: hp120281, hp130023, hp140209, hp140155, hp150135, hp160125). We thank the colleagues in the PACS Collaboration for helpful discussions and providing us the code used in this work. This work is supported in part by MEXT SPIRE Field 5, and also by Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology (Nos. 22244018, 25800138, 16H06002).
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PY - 2016
Y1 - 2016
N2 - We present preliminary results for nucleon form factors including the axial charge and the isovector electric radius in 2+1 flavor QCD at almost the physical pion mass on a 964 lattice with the lattice spacing of 0.085 fm. The configurations are generated with the stout-smeared O(a)- improved Wilson quark action and the Iwasaki gauge action at β=1.82. A large spatial volume of (8.1fm)3 allows us to investigate the form factors at small momentum transfer region. We discuss analyses of the momentum dependence of the form factors with the z-expansion.
AB - We present preliminary results for nucleon form factors including the axial charge and the isovector electric radius in 2+1 flavor QCD at almost the physical pion mass on a 964 lattice with the lattice spacing of 0.085 fm. The configurations are generated with the stout-smeared O(a)- improved Wilson quark action and the Iwasaki gauge action at β=1.82. A large spatial volume of (8.1fm)3 allows us to investigate the form factors at small momentum transfer region. We discuss analyses of the momentum dependence of the form factors with the z-expansion.
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M3 - Conference article
AN - SCOPUS:85025811811
VL - Part F128557
JO - Proceedings of Science
JF - Proceedings of Science
SN - 1824-8039
T2 - 34th Annual International Symposium on Lattice Field Theory, LATTICE 2016
Y2 - 24 July 2016 through 30 July 2016
ER -