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arXiv · 1101.5527

A chiral quark model for meson electro-production in the S11 partial wave

Bojan Golli·Simon Širca
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Abstract

We calculate the meson scattering and electro-production amplitudes in the S11 partial wave in a coupled-channel approach that incorporates quasi-bound quark-model states. Using the quark wave functions and the quark-meson interaction from the Cloudy Bag Model, we obtain a good overall agreement with the available experimental results for the partial widths of the N(1535) and the N(1650) resonances as well as for the pion, eta and kaon electro-production amplitudes. Our model is consistent with the N(1535) resonance being dominantly a genuine three-quark state rather than a quasi-bound state of mesons and baryons.

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Bojan Golli, Simon Širca. 2011-01-28. A chiral quark model for meson electro-production in the S11 partial wave. https://doi.org/10.1140/epja/i2011-11061-0

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