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arXiv · 0710.5677

Chiral constituent quark model study of the process $γp \to ηp$

Jun He·Bijan Saghai·Zhenping Li·Qiang Zhao·Johan Durand
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Abstract

A constituent quark model is developed for the reaction, allowing us to investigate all available data for differential cross sections as well as single polarization asymmetries (beam and target) by including {\it all} of the PDG, one to four star, nucleon resonances ($S_{11}$, $P_{11}$, $P_{13}$, $D_{13}$, $D_{15}$, $F_{15}$, $F_{17}$, $G_{17}$, $G_{19}$, $H_{19}$, $I_{1,11}$, and $K_{1,13}$). Issues related to the missing resonances are also briefly discussed by examining possible contributions from several new resonances ($S_{11}$, $P_{11}$, $P_{13}$, $D_{13}$, $ D_{15}$, and $H_{1,11}$).

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Jun He, Bijan Saghai, Zhenping Li, Qiang Zhao, Johan Durand. 2007-10-30. Chiral constituent quark model study of the process $γp \to ηp$. https://doi.org/10.1140/epja/i2007-10560-9

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