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Photoproduction of Baryons Decaying into N pi and N eta

A. V. Anisovich·A. Sarantsev·O. Bartholomy·E. Klempt·V. A. Nikonov·U. Thoma
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Abstract

A combined analysis of photoproduction data on γp to πN, eta N was performed including the data on K Lambda and K Sigma. The data are interpreted in an isobar model with s--channel baryon resonances and pi, rho,(omega), K, and K^* exchange in the t--channel. Three baryon resonances have a substantial coupling to eta N, the well known N(1535)S_{11}, N(1720)P_{13}, and N(2070)D_{15}. The inclusion of data with open strangeness reveals the presence of further new resonances, N(1840)P_{11}, N(1875)D_{13} and N(2170)D_{13}.

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A. V. Anisovich, A. Sarantsev, O. Bartholomy, E. Klempt, V. A. Nikonov, U. Thoma. 2005-06-06. Photoproduction of Baryons Decaying into N pi and N eta. https://doi.org/10.1140/epja%2Fi2005-10120-5

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