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Scholarly Communication

The pion form factor from lattice QCD with two dynamical flavours

Brömmel, D.; Diehl, M.; Göckeler, M.; Hägler, P.; Horsley, R.; Nakamura, Y.; Pleiter, D.; Rakow, P.E.L.; Shäfer, A.; Schierholz, G.; Stüben, H. and Zanotti, J.M. (2007) The pion form factor from lattice QCD with two dynamical flavours. The European Physical Journal C - Particles and Fields, 51 (2). pp. 335-345. ISSN 1434-6052 (Online); 1434-6044 (Print)

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We compute the electromagnetic form factor of the pion using non-perturbatively O(a) improved Wilson fermions. The calculations are done for a wide range of pion masses and lattice spacings. We check for finite size effects by repeating some of the measurements on smaller lattices. The large number of lattice parameters we use allows us to extrapolate to the physical point. For the square of the charge radius we find <r^2>=0.441(20) fm^2, in good agreement with experiment.

Item Type:Article
Additional Information:LTH 710; arXiv Number: arXiv:hep-lat/0608021v2. Published online: 4 May 2007. Issue: July, 2007.
Uncontrolled Keywords:quantum chromodynamics; lattice field theory; pi; form factor; flavor; 2; finite size effect; mass monopole; numerical calculations; Monte Carlo
Subjects:Q Science > QC Physics
Departments, Research Centres and Related Units:Academic Faculties, Institutes and Research Centres > Faculty of Science > Department of Mathematical Sciences
Publisher's Statement:Please acknowledge the original source of publication. The original publication is available at © Springer. Part of Springer Science+Business Media
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ID Code:283
Deposited On:08 Jun 2009 12:27
Last Modified:05 Mar 2012 10:08

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