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arXiv · 1304.4029

Baryon photo-decay amplitudes at the pole

R. L. Workman·L. Tiator·A. Sarantsev
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Abstract

We derive relations for baryon photo-decay amplitudes both for the Breit-Wigner and the pole positions. With an updated SAID partial wave analysis, technically similar to the earliest Virginia Tech analysis of photoproduction data, we compare photo-decay amplitudes at both resonance positions for a few selected nucleon resonances. Comparisons are made and a qualitative similarity, seen between the pole and Breit-Wigner values extracted by the Bonn-Gatchina group, is confirmed in the present study.

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R. L. Workman, L. Tiator, A. Sarantsev. 2013-04-15. Baryon photo-decay amplitudes at the pole. https://doi.org/10.1103/physrevc.87.068201

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