Vadim Lensky, Judith A. McGovern, Daniel R. Phillips, Vladimir Pascalutsa
We compare the predictions of different variants of chiral effective field theory for the gamma-p elastic scattering differential cross section. We pay particular attention to the role of pion loops, and the impact that a heavy-baryon expansion has on the behavior of those loops. We also correct erroneous results for these loops that were published in Phys. Rev. C 67, 055202 (2003) [ arXiv:nucl-th/0212024 ].
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http://arxiv.org/abs/1208.4559
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