https://doi.org/10.1140/epja/s10050-026-01833-4
Regular Article - Experimental Physics
Photonuclear reactions on 
Au: comparison of experimental results and theoretical predictions
1
Physics Department, Faculty of Science, University Novi Sad, Novi Sad, Serbia
2
Institute of Physics, Belgrade, Serbia
3
Faculty of Technical Sciences, University of Novi Sad, Novi Sad, Serbia
4
Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna, Russia
5
A.Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan, Armenia
a
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Received:
5
September
2025
Accepted:
2
March
2026
Published online:
30
March
2026
Abstract
In this study, the 
reaction was used to monitor the photon flux, and the intensity of the bremsstrahlung beam was normalized using several available cross-section datasets. For other gold isotopes, whose gamma lines were identified in off-line gamma spectroscopic measurements, the experimental values of the flux-averaged cross sections were determined. It was observed that the results depend, to some extent, on the method used for normalizing the bremsstrahlung spectrum. These experimental results are compared to the flux-averaged cross sections obtained from TALYS theoretical cross-section estimates. Theoretical values of the flux-averaged cross sections were calculated for 60 combinations of photon strength function and level density models. For the 
reaction, approximately half of these combinations yield estimates that are comparable to the experimental results at the endpoint energies of 40, 50 and 60 MeV. However, the agreement for the 
, 
, and 
reactions is significantly worse, with only a few combinations out of 54 providing flux-averaged cross sections that match the experimental values.
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Communicated by Catalin Matei.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2026
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
