23–28 Jun 2014
Columbia University
US/Eastern timezone

Locally smeared operator product expansions

26 Jun 2014, 16:15
20m
329 Pupin

329 Pupin

Talk Theoretical Developments Theoretical Developments

Speaker

Dr Christopher Monahan (College of William and Mary)

Description

We propose a new ``smeared'' operator product expansion (sOPE) in which the set of local operators in the OPE are replaced by their locally smeared counterparts, generated by the gradient flow. The flow time, or smearing, parameter serves as a regulator for both Wilson coefficients and operator products. Matrix elements determined nonperturbatively on the lattice using smeared degrees of freedom remain finite in the continuum limit, provided the physical smearing scale is kept fixed. We study the sOPE in scalar field theory and discuss the application to Deep Inelastic Scattering.

Primary author

Dr Christopher Monahan (College of William and Mary)

Co-author

Prof. Kostas Orginos (College of William and Mary/Jefferson Lab)

Presentation materials