RIKEN/BNL Lunch Time Talk

"Nucleon structure from 2+1-flavor dynamical DWF QCD at nearly physical pion mass"

Presented by Shigemi Ohta, KEK/RBRC

Thursday, June 7, 2012, 12:30 pm — Building 510 / Room 2-160

I report the current status of joint RBC+UKQCD numerical lattice QCD study of nucleon structure using several 2+1-flavor dynamical domain-wall fermions (DWF) ensembles with pion mass as low as 170 MeV and spatial volume as large as \(L=4.6\) fm across. Isovector form factors of vector and axialvector currents and some low moments of isovector structure functions will be discussed. In particular the results for the ratio of vector and axial charges, gA/gV, calculated at pion mass of about \(m_\pi=250\) MeV seems to confirm our earlier conjecture that the quantity scales with a parameter \(m_\pi L\).

Hosted by: Tomomi Ishikawa

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