Finite-volume correction on the hadronic vacuum polarization contribution to the muon g?2 in lattice QCD

• 藏増, 嘉伸

• Izubuchi, Taku

• Kuramashi, Yoshinobu

• Lehner, Christoph

• Shintani, Eigo

Abstract

We study the finite-volume correction on the hadronic vacuum polarization contribution to the muon g?2 (ahvpμ) in lattice QCD at (near) physical pion mass using two different volumes: (5.4??fm)4 and (8.1??fm)4. We use an optimized AMA technique for noise reduction on Nf=2+1 PACS gauge configurations with stout-smeared clover-Wilson fermion action and Iwasaki gauge action at a single lattice cut-off a?1=2.33??GeV. The calculation is performed for the quark-connected light-quark contribution in the isospin symmetric limit. We take into account the effects of backward state propagation by extending a temporal boundary condition. In addition, we study a quark-mass correction to tune to the exact same physical pion mass on different volume and compare those correction with chiral perturbation. We find 10(26)×10?10 difference for light quark ahvpμ between (5.4??fm)4 and (8.1??fm)4 lattice in 146 MeV pion.

Journal

• Physical review D

  Physical review D 98 (5), 54505-, 2018-09

  American Physical Society

Details

• CRID: 1050001202543990784
• NII Article ID: 120007133779
• NII Book ID: AA00773624
• HANDLE: 2241/00153670
• ISSN: 24700010
• Web Site: https://tsukuba.repo.nii.ac.jp/records/48181
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles
  • KAKEN