PoS - Proceedings of Science
Volume 363 - 37th International Symposium on Lattice Field Theory (LATTICE2019) - Main session
Nucleon isovector couplings from 2+1 flavor lattice QCD at the physical point
N. Tsukamoto,* Y. Aoki, K.I. Ishikawa, Y. Kuramashi, E. Shintani, S. Sasaki, T. Yamazaki
*corresponding author
Full text: pdf
Pre-published on: January 06, 2020
Published on:
We present results on the axial, scalar and tensor isovector-couplings of the nucleon from 2+1 flavor lattice QCD with physical light quarks ($m_\pi = 135~{\rm MeV}$) in large spatial volume of ($10.8~\rm fm)^3$. The calculations are carried out with the PACS10 gauge configurations generated by the PACS Collaboration with the stout-smeared $\mathcal{O}(a)$ improved Wilson fermions and Iwasaki gauge action at $\beta=1.82$ corresponding to the lattice spacing of $\rm 0.084~fm$.
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 $\overline{\rm MS}$ scheme at a scale of $\rm 2~GeV$, using the continuum perturbation theory for the matching scale of RI/SMOM and $\overline{\rm MS}$ schemes and running.
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.