Novel error reduction techniques in Lattice QCD

2017 Fiscal Year Final Research Report

• Project/Area Number: 26400261
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Institute of Physical and Chemical Research
• Principal Investigator: Izubuchi Taku 国立研究開発法人理化学研究所, 仁科加速器研究センター, グループリーダー (60324068)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 大規模数値計算 / 格子場の理論 / 量子色力学 / 素粒子標準模型 / ハドロン崩壊 / ミューオン異常磁気能率 / CP対称性の破れ

Outline of Final Research Achievements

Sub-atomic particles, quark and gluon, are governed by the strong interaction called Quantum Chromo Dynamics (QCD). Large scale calculation of QCD with chiral lattice fermions is performed on supercomputers to provide two important theoretical predictions: 1) CP-violating K meson decay into two pions and ε' / ε 2) hadronic contributions to anomalous magnetic moment g-2 of muon. By developing various novel theoretical and algorithmic techniques, we carried out the first computation on K→ππ and also provided, so far, the most precise prediction on g-2.

Free Research Field

格子場の理論・素粒子理論・高エネルギー物理学