Photoproduction of η mesons on nuclei in the region of the S11 (1535)
Dudkin G.N., Eponeshnikov V.N., Krechetov Yu.F.
We measured the differential cross section of incoherent photoproduction of η mesons on the nuclei C, Cu, Ag, and Pb. Using the dependence of the cross sections on the mass number A, we determined the dipole and elastic cross sections of the η N interaction for η-meson kinetic energies 80, 150, and 230 MeV. These data yielded the mass of the Su (1535) resonance and its width.
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