Nucleon structure from 2+1-flavor dynamical DWF ensembles
Michael Abramczyk (1), Meifeng Lin (2), Andrew Lytle (3), and Shigemi, Ohta (4, 5, 6) (for the RBC, UKQCD Collaborations) ((1) University, of Connecticut, (2) Brookhaven National Laboratory, (3) University of, Glasgow, (4) KEK, (5) SOKENDAI, (6) RIKEN-BNL Research Center)
TL;DR
This paper reports on nucleon structure calculations using 2+1-flavor dynamical domain-wall fermion ensembles, providing improved statistical results for various form factors and structure functions relevant to understanding nucleon internal dynamics.
Contribution
It presents new lattice QCD results for nucleon form factors and structure functions using two recent RBC+UKQCD ensembles with improved statistics and physical parameters.
Findings
Measured nucleon isovector form factors and charges.
Calculated quark momentum and helicity moments.
Provided results at near-physical pion masses.
Abstract
Nucleon isovector vector- and axialvector-current form factors, the renormalized isovector transversity and scalar charge, and the bare quark momentum and helicity moments of isovector structure functions are reported with improved statistics from two recent RBC+UKQCD 2+1-flavor dynamical domain-wall fermions ensembles: Iwasaki\(\times\)DSDR gauge \(32^3\times64\) at inverse lattice spacing of 1.38 GeV and pion mass of 249 and 172 MeV.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research