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# 36th Annual International Symposium on Lattice Field Theory

22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

## Pion Distribution Amplitude from lattice QCD: towards the continuum limit

Jul 24, 2018, 3:20 PM
20m
106 (Kellogg Hotel and Conference Center)

### 106

#### Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Hadron Structure

### Speaker

Dr Piotr Korcyl (Jagiellonian University and University of Regensburg)

### Description

We present the current status of a non-perturbative lattice calculation of the pion distribution amplitude by the RQCD collaboration. Our investigation is carried out using $N_f=2+1$ dynamical, non-perturbatively O(a)-improved Wilson fermions on the CLS ensembles with 5 different lattice spacings and pion masses down to the physical pion mass. A combined continuum and chiral extrapolation to the physical point is performed along two independent quark mass trajectories simultaneously. We employ momentum smearing in order to decrease the contamination of excited states and increase statistical precision.

### Primary authors

Mr Fabian Hutzler (University of Regensburg) Mr Michael Gruber (University of Regensburg) Dr Philipp Wein (Universität Regensburg) Dr Piotr Korcyl (Jagiellonian University and University of Regensburg)

 Slides