Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session Q06: New Developments in Computing Hadron Structure
10:45 AM–12:33 PM,
Monday, April 15, 2019
Sheraton
Room: Governor's Square 15
Sponsoring
Units:
DCOMP GHP
Chair: Swagato Mukherjee, Brookhaven National Laboratory
Abstract: Q06.00001 : Parton distribution inside the pion from lattice QCD*
10:45 AM–11:21 AM
View Presentation
Abstract 
Presenter:
Nikhil Karthik
(BNL)
Authors:
Nikhil Karthik
(BNL)
Taku Izubuchi
(BNL)
Luchang Jin
(University of Connecticut)
Christos Kallidonis
(Stony Brook University)
Swagato Mukherjee
(Brookhaven National Laboratory)
Peter Petreczky
(Brookhaven National Laboratory)
Charles Shugert
(Stony Brook University)
Sergey Syritsyn
(Stony Brook University)
We will present our lattice computation of the valence Parton Distribution Function of 300 MeV pion. For this work, we use perturbative matching of the Euclidean RI-MOM renormalized quasi Parton Distribution Function that we compute on HISQ ensembles with 0.06 and 0.04 fm lattice spacings. In addition, we will discuss the validity of leading order perturbative matching and other systematic effects that potentially enter such lattice computations of PDF.
*The work was supported by the U.S. Department of Energy, Office of Nuclear Physics through the Contract No. DE-SC001270, BNL LDRD project No. 16-37, and Scientific Discovery through Advance Computing (ScIDAC) award ”Computing the Properties of Matter with Leadership Computing Resources”. SS also acknowledges support by the RHIC Physics Fellow Program of the RIKEN BNL Research Center. Computations were carried out using USQCD resources at JLab and BNL. This research also used an award of computer time provided by the INCITE program at the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC05-00OR22725.
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