Eur. Phys. J. A (2022) 58: 118
https://doi.org/10.1140/epja/s10050-022-00778-8

Regular Article - Experimental Physics

Investigation of (γ,p)-reactions on zirconium and molybdenium nuclei

Kyiv Institute for Nuclear Research of NAS of Ukraine, Kyiv, Ukraine

^b favd@i.ua

Received: 8 April 2022
Accepted: 22 June 2022
Published online: 5 July 2022

Abstract

The flux-weighted average yields of the ⁹²Mo(γ,p)^91mNb, ⁹⁶Mo(γ,p)⁹⁵Nb, ⁹⁷Mo(γ,p)⁹⁶Nb, ⁹⁸Mo(γ,p)⁹⁷Nb, ⁹⁴Zr(γ,p)⁹³Y, ⁹¹Zr(γ,p)^90mY and ⁹²Zr(γ,p)^91mY reactions were measured for the first time at an bremsstrahlung end-point energy of 20 MeV. They are equal 10,700(1600), 1920(200), 708(70), 980(100), 1067(187), 85(8) and 143(15) µb, respectively. It is shown that the semi-direct mechanism, which is taking into account the isospin splitting of the giant dipole resonance makes a much greater contribution to the mechanisms of the above reactions than the statistical one calculated using the TALYS-1.9 code.