Jul 24 – 30, 2016
Highfield Campus, University of Southampton
Europe/London timezone

Pion structure from twisted mass lattice QCD down to the physical pion mass

Jul 29, 2016, 3:00 PM
Building B2a Room 2077 (Highfield Campus, University of Southampton)

Building B2a Room 2077

Highfield Campus, University of Southampton

Highfield Campus, Southampton SO17 1BJ, UK
Talk Hadron Structure Hadron Structure


Mr Bartosz Kostrzewa (HISKP (Theory) - Universitaet Bonn)


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)

Presentation materials