Pour vous authentifier, privilégiez eduGAIN / To authenticate, prefer eduGAINeu

Andrea Shindler: Moments of parton distribution functions of any order from lattice QCD

Europe/Paris
Description

We introduce a new method to compute moments of  parton distribution functions (PDFs) of any order using lattice QCD.  By calculating flowed matrix elements of twist-2 operators that renormalize multiplicatively,  we match lattice results to physical quantities through continuum symmetries.  Our approach includes one-loop matching coefficients for the non-singlet case  and provides operator examples for lattice QCD,  with flexible Lorentz index choices optimized for signal-to-noise ratio enhancement.  Preliminary results for pion PDF moments demonstrate the success of this method  in overcoming renormalization challenges and improving the signal-to-noise ratio,  offering a powerful, new non-perturbative tool for a first-principle determination of PDFs.

L'ordre du jour de cette réunion est vide