Probing nucleon structure on the lattice

M. Göckeler; Ph. Hägler; R. Horsley; Y. Nakamura; D. Pleiter; P. E. L. Rakow; A. Schäfer; G. Schierholz; W. Schroers; H. Stüben; J. M. Zanotti

doi:10.1140/epja/i2006-10419-7

EPJ

a
b
c
d
e
ap
st
h
plus
ds
pv
ti
qt
am
n

2023 Impact factor 2.6

Hadrons and Nuclei

Eur. Phys. J. A (2007) 32: 445-450
https://doi.org/10.1140/epja/i2006-10419-7

PAVI 2006

Probing nucleon structure on the lattice

The QCDSF/UKQCD Collaboration
M. Göckeler¹, Ph. Hägler², R. Horsley³, Y. Nakamura⁴, D. Pleiter⁴, P. E. L. Rakow⁵, A. Schäfer¹, G. Schierholz⁴^,6, W. Schroers⁴, H. Stüben⁷ and J. M. Zanotti³

¹ Institut für Theoretische Physik, Universität Regensburg, 93040, Regensburg, Germany
² Physik-Department der TU München, Institut für Theoretische Physik T39, 85747, Garching, Germany
³ School of Physics, University of Edinburgh, EH9 3JZ, Edinburgh, UK
⁴ John von Neumann-Institut für Computing NIC/DESY, 15738, Zeuthen, Germany
⁵ Theoretical Physics Division, Department of Mathematical Sciences, University of Liverpool, L69 3BX, Liverpool, UK
⁶ Deutsches Elektronen-Synchrotron DESY, 22603, Hamburg, Germany
⁷ Konrad-Zuse-Zentrum für Informationstechnik Berlin, 14195, Berlin, Germany

Received: 31 August 2006
Accepted: 18 March 2007
Published online: 2 July 2007

Abstract

The QCDSF/UKQCD Collaboration has an ongoing program to calculate nucleon matrix elements with two flavours of dynamical O(a) improved Wilson fermions. Here we present recent results on the electromagnetic form factors, the quark momentum fraction 〈x〉 and the first three moments of the nucleon's spin-averaged and spin-dependent generalised parton distributions, including preliminary results with pion masses as low as 320MeV.

PACS: 12.38.Gc Lattice QCD calculations – / 13.40.Gp Electromagnetic form factors –

© Società Italiana di Fisica and Springer-Verlag, 2007