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Phys. Rev. D 71, 014001 (2005) [9 pages]

Leading quenching effects in the proton magnetic moment

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R. D. Young1, D. B. Leinweber1, and A. W. Thomas1,2
1Special Research Centre for the Subatomic Structure of Matter, and Department of Physics and Mathematical Physics, University of Adelaide, Adelaide SA 5005, Australia
2Jefferson Laboratory, 12000 Jefferson Avenue, Newport News, Virginia 23606, USA

Received 22 June 2004; published 3 January 2005

We present the first investigation of the extrapolation of quenched nucleon magnetic moments in quenched chiral effective field theory. We utilize established techniques in finite-range regularization and incorporate finite-volume corrections to the relevant loop integrals. Finally, the contributions of dynamical sea quarks to the proton moment are estimated using a recently discovered phenomenological link between quenched and physical QCD.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.71.014001
DOI:
10.1103/PhysRevD.71.014001
PACS:
12.39.Fe, 12.38.Gc