2004/12/31 by Vladimir Pascalutsa, Marc Vanderhaeghen · 3 citations
Physics and Astronomy · #nucl-th #hep-ph
paper · pdf · doi:10.1103/physrevlett.94.102003
published as Phys.Rev.Lett.94:102003,2005 · 5 pages, 3 figures; two sentences and one reference added - version accepted for publication in PRL
arxiv created 2005/02/11 · arxiv updated 2014/11/18
We perform a relativistic chiral effective field theory calculation of the radiative pion photoproduction (γp → π0 p γ') in the Δ-resonance region, to next-to-leading order in the ``delta-expansion''. This work is aimed at a model-independent extraction of the Δ+ magnetic moment from new precise measurements of this reaction. It also predicts the chiral behavior of Δ's magnetic moment, which can be used to extrapolate the recent lattice QCD results to the physical point.