Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

Nucleon electromagnetic form factors using $N_f$=2+1+1 twisted mass fermion ensembles at the physical mass point

Aug 9, 2022, 2:20 PM
20m
CP1-HSZ/1st-1.002 - HS6 (CP1-HSZ)

CP1-HSZ/1st-1.002 - HS6

CP1-HSZ

50
Oral Presentation Hadron Structure Hadron Structure

Speaker

Giannis Koutsou (The Cyprus Institute)

Description

We present results for the nucleon electromagnetic form factors using $N_f$=2+1+1 twisted mass lattice QCD with clover improvement and with quarks with masses tuned to their physical values. Our preliminary analysis includes three ensembles at similar physical volume and lattice spacings $a\sim$0.08 fm, $\sim$0.07 fm, and $\sim$0.06 fm allowing us to take the continuum limit directly at the physical mass point. For each ensemble we assess excited state effects using several sink-source time separations in the range 0.8 fm - 1.6 fm, exponentially increasing statistics with the separation.

Primary authors

Constantia Alexandrou Giannis Koutsou (The Cyprus Institute) Gregoris Spanoudes (The Cyprus Institute) Jacob Finkenrath Karl Jansen (DESY) Kyriakos Hadjiyiannakou (University of Cyprus) Martha Constantinou (Temple University) Martha Constantinou (Temple University) Simone Bacchio (The Cyprus Institute)

Presentation materials