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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

Higher moments of parton distribution functions

Jul 25, 2018, 2:20 PM
20m
106 (Kellogg Hotel and Conference Center)

106

Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Hadron Structure Hadron Structure

Speaker

Zohreh Davoudi (University of Maryland)

Description

Higher moments of patron distribution functions (PDFs) have evaded lattice QCD calculations due to the well-known problem of power-divergent mixing with low-dimension operators towards the continuum limit. With a new proposal for smeared and angular-momentum projected operators presented in Phys. Rev. D 86, 054505 (2012), we obtain moments of several PDFs of the pion, including the high moments previously inaccessible to LQCD calculations, through a dedicated numerical study using a sequence of coarse to ultrafine quenched QCD ensembles generated with the proposal of Phys. Rev. D 92, 114516 (2015). Our preliminary results demonstrate the feasibility of extracting higher moments of PDFs of hadrons in future LQCD studies, complementing existing proposals for direct evaluations of quasi-PDFs.

Primary authors

Andrew Pochinsky (MIT) Dr Michael Endres (Harvard University) Prof. Phiala Shanahan (William & Mary) Dr William Detmold (MIT) Zohreh Davoudi (University of Maryland)

Presentation Materials