The 38th International Symposium on Lattice Field Theory

Spectral sum from Euclidean lattice correlators and determination of renormalization constants

28 Jul 2021, 22:15

15m

Oral presentation Standard Model Parameters Standard Model Parameters

Speaker

Tsutomu Ishikawa (SOKENDAI, KEK, RIKEN)

Description

We construct a method for computing the spectral sum appearing in the Shifman-Vainshtein-Zakharov (SVZ) QCD sum rule. The method gives results consistent with the operator product expansion (OPE) of the $s\overline{s}$ correlation function in the vector channel. The application of this method to other channels is useful for operator renormalization as well as the test of perturbative QCD and OPE.

Presentation materials

342_W4Sm_Tsutomu_Ishikawa

TsutomuIshikawa_lattice20210728.pdf