Chiral Corrections and the Axial Charge of the Delta

Details Chiral Corrections and the Axial Charge of the Delta Chiral Corrections and the Axial Charge of the Delta

2008-03-23

arxiv.org/abs/0803.3316v1

Phys.Rev.D78:017504,2008

Physics

Nuclear Physics

Nuclear Theory

4 pages, 3 figures, brief report

Scientific paper

10.1103/PhysRevD.78.017504

Chiral corrections to the delta axial charge are determined using heavy baryon chiral perturbation theory. Knowledge of this axial coupling is necessary to assess virtual-delta contributions to nucleon and delta observables. We give isospin relations useful for a lattice determination of the axial coupling. Furthermore we detail partially quenched chiral corrections, which are relevant to address partial quenching and/or mixed action errors in lattice calculations of the delta axial charge.

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