Nucleon structure from 2+1-flavor dynamical Domain-Wall Fermion ensembles

Junio 29, 2017
De 3:00pm hasta 4:00pm

IFT Seminar Room/Red Room

Specialist level
Speaker: 
Shigemi Ohta
Institution: 
KEK & RIKEN BNL
Location&Place: 

IFT Seminar Room/Red Room

Abstract: 
I will discuss lattice-QCD numerical calculations of nucleon structures using 2+1-flavor dynamical domain-wall fermion (DWF) ensembles jointly generated by RIKEN-BNL-Columbia (RBC) and UKQCD collaborations.  In these ensembles strange-quark mass is set essentially at its physical value and degenerate up- and down-quark mass is set as light as practical, down to pion mass of about 172 MeV.  We are finishing our analysis for iso vector observables such as vector- and axialvector-current form factors, transversity, scalar charge, and quark momentum and helicity fractions.  And we are resuming calculations at physical pion mass this summer.