Speaker
Mr
Bartosz Kostrzewa
(HISKP (Theory) - Universitaet Bonn)
Description
We present an investigation of pion structure based on ETMC $N_f=2$ and $N_f=2+1+1$
twisted mass configurations at maximal twist. We compute
the first two moments of the quark momentum fraction of the pion and the electromagnetic form factor.
For the latter, momentum is injected using twisted boundary conditions and $F_\pi(Q^2)$ is calculated
at the physical pion mass. We find that our data is consistent with vector meson dominance and
experimental data in the region of momentum transfer $Q^2 > 0.01$ $\,\mathrm{GeV}^2$.
Primary authors
Mr
Bartosz Kostrzewa
(HISKP (Theory) - Universitaet Bonn)
Prof.
Carsten Urbach
(HISKP (Theory) - Universtitaet Bonn)
Dr
Francesco Sanfilippo
(INFN - Sezione Roma Tre)
Mr
Maximilian Oehm
(HISKP (Theory) - Universitaet Bonn)
Dr
Silvano Simula
(INFN - Sezione Roma Tre)
