Spin polarisabilities of the nucleon at NLO in the chiral expansion

Details Spin polarisabilities of the nucleon at NLO in the chiral expansion Spin polarisabilities of the nucleon at NLO in the chiral expansion

2000-07-07

arxiv.org/abs/nucl-th/0007015v1

Physics

Nuclear Physics

Nuclear Theory

6 pages, 2 figures, talk given at GDH2000, Mainz, June 14-17 2000

Scientific paper

We present a calculation of the fourth-order (NLO) contribution to spin-dependent Compton scattering in heavy-baryon chiral perturbation theory, and we give results for the four spin polarisabilities. These results have been presented before, in hep-ph/0002133. Here we address the issue of whether one-particle reducible graphs in the heavy baryon theory contribute to the polarisabilities.

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