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Magnetic moment of the delta(1232) resonance in chiral effective-field theory.

Authors
Type
Published Article
Journal
Physical review letters
Publication Date
Volume
94
Issue
10
Pages
102003–102003
Identifiers
PMID: 15783478
Source
Medline

Abstract

We perform a relativistic chiral effective-field theory calculation of the radiative pion photoproduction (gammap--> pi(0)pgamma(')) in the Delta-resonance region, to next-to-leading order in the "delta expansion." This work is aimed at a model-independent extraction of the Delta(+) magnetic moment from new precise measurements of this reaction. It also predicts the chiral behavior of Delta's magnetic moment, which can be used to extrapolate the recent lattice QCD results to the physical point.

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