Abstract
The cross sections evaluated for the (\(\gamma,1n\)) and (\(\gamma,2n\)) partial photoneutron reactions on \({}^{\textrm{197}}\)Au by means of objective physical criteria of data reliability are compared with the results of various experiments. It is shown that the evaluated data differ significantly from the results of experiments performed with the aid of the photoneutron multiplicity sorting method but agree with the results obtained by alternative methods. Both for the reactions \({}^{197}\)Au\((\gamma,1n)^{196}\)Au and \({}^{197}\)Au\((\gamma,2n)^{195}\)Au, the best agreement is reached with the results of activation experiments and modern experiments based on the technique of direct neutron multiplicity sorting by means of a flat-efficiency detector and performed in the beam of gamma rays originating from the Compton backscattering of laser photons on relativistic electrons.
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ACKNOWLEDGMENTS
The present research was performed at the Department of Electromagnetic Processes and Interactions of Atomic Nuclei, Skobeltsyn Institute of Nuclear Physics, Moscow State University.
The authors are grateful to V.N. Orlin for presenting at our disposal the results of theoretical calculations of cross sections for photonuclear reactions. Thanks are also due to H. Utsunomiya, D.M. Filipescu, I. Gheorghe, S.S. Belyshev, and K.A. Stopani for their generous help in obtaining new experimental data and for fruitful discussions.
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Varlamov, V.V., Davydov, A.I. Experimental and Evaluated Data on the Photodisintegration of \({}^{{197}}\)Au. Phys. Atom. Nuclei 85, 1–11 (2022). https://doi.org/10.1134/S1063778822010148
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DOI: https://doi.org/10.1134/S1063778822010148