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Abstract
We study the influence of the nucleon spectral function on eta photo- and electroproduction
on nuclei. Besides kinematical effects due to groundstate correlations, also a modification
of the S11(1535) decay width is taken into account, which is caused by the possible
decay into nucleons with mass smaller than the pole mass in the medium. Hence, resonances
with masses below the free N eta threshold can contribute to eta production.