Threshold Behaviour of Meson-Nucleon-$S_{11}$(1535) Vertexfunctions and Determination of the $S_{11}$(1535) Mixing Angle

Details Threshold Behaviour of Meson-Nucleon-$S_{11}$(1535) Vertexfunctions and Determination of the $S_{11}$(1535) Mixing Angle Threshold Behaviour of Meson-Nucleon-$S_{11}$(1535) Vertexfunctions and Determination of the $S_{11}$(1535) Mixing Angle

1999-10-04

arxiv.org/abs/nucl-th/9910010v2

PiN Newslett.15:250-253,1999

Physics

Nuclear Physics

Nuclear Theory

4 pages, no figures; Proceeding of the Eighth Int. Symposium on "Meson-Nucleon Physics and the Structure of the Nucleon", Augu

Scientific paper

A new method for the determination of the spin-1/2-3/2-mixing angle and the
range parameter of the quarkmodel wavefunction of the resonance
$S^-_{11}(1535)$ is presented. The method ist based on a quantitative
calculation of the total cross section of $pp\to pp\eta$ at threshold. The
quantitative on-shell treatment of ISI and FSI is discussed.

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