Jul 26 – 30, 2021
US/Eastern timezone

The lower moments of nucleon structure functions in lattice QCD with physical quark masses

Jul 26, 2021, 9:00 PM
15m
Oral presentation Hadron Structure Hadron Structure

Speaker

Ryutaro Tsuji

Description

We will present the current status of nucleon structure studies with physical light quarks ($m_\pi$ = 135 MeV) in a large spatial extent of about 10 fm. Our 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 $\beta$=1.82 corresponding to the lattice spacing of 0.084 fm. In this talk, we mainly focus on the lower moments of nucleon structure functions that are known as quark momentum and helicity fractions respectively, which are regarded as bench marks on lattice calculations of parton distribution functions.In addition, we will present the preliminary results with another PACS10 ensemble generated at finer lattice spacing.

Primary author

Co-authors

Yasumichi Aoki (RIKEN) Ken-Ichi Ishikawa (Hiroshima University) Yoshinobu Kuramashi (University of Tsukuba) Prof. Shoichi Sasaki (Tohoku University) Eigo Shintani Takeshi Yamazaki

Presentation materials