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Title: A novel nonperturbative renormalization scheme for local operators
The gradient flow exponentially suppresses ultraviolet field fluctuations and removes ultraviolet divergences (up to a multiplicative fermionic wavefunction renormalization). It can be used to describe real-space Wilsonian renormalization group transformations and determine the corresponding beta function. We propose a new nonperturbative renormalization scheme for local composite fermionic operators that uses the gradient flow and is amenable to lattice QCD calculations. We present preliminary nonperturbative results for the running of quark bilinear operators in this scheme and outline the calculation of perturbative matching to the MS-bar scheme.  more » « less
Award ID(s):
1913287
PAR ID:
10379966
Author(s) / Creator(s):
; ; ; ;
Date Published:
Journal Name:
The 38th International Symposium on Lattice Field Theory (LATTICE2021)
Volume:
396
Page Range / eLocation ID:
155
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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