Single quark transition analysis of baryon resonance photocouplings |
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| Authors: | J. Babcock J.L. Rosner R.J. Cashmore A.J.G. Hey |
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| Affiliation: | School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA;Nuclear Physics Department, Oxford University, UK;Physics Department, Southampton Universoty, UK |
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| Abstract: | Resonance photocouplings of Barbour and Crawford are analysed within the context of the Melosh transformation. These photocouplings are the first set that favour a particular relative sign of the P-wave and F-wave pionic decays of the multiplet. This conclusion rests primarily on the photocouplings of the P13+(1790) resonance. The favoured sign disagrees with that found in an analysis of πN → πΔ which relies on the contribution of the F15(1680) resonance. |
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