Radiative Strength Functions for Dipole Transitions in 57, 59Co

TL;DR

This paper determines radiative strength functions for dipole transitions in cobalt isotopes using resonance data from iron reactions, comparing experimental results with statistical model calculations, achieving good agreement without parameter adjustments.

Contribution

It provides new empirical data on radiative strength functions for 57Co and 59Co, validated by comparison with statistical model calculations considering nuclear temperature and shell effects.

Findings

Good agreement between experimental data and theoretical calculations

Radiative strength functions below 10 MeV are reliably determined

No parameter adjustments needed for the model

Abstract

Average-resonance data on the (p,gamma) reaction on 56,58Fe that were taken at proton energies of Ep=1.5-3.0 MeV are used to determine the absolute values of the radiative strength functions for energies below 10 MeV. The results obtained in this way are compared with the results of the calculations that rely on the statistical approach and which take into account the temperature of the nucleus and its shell structure. Good agreement with experimental data is achieved without any variation of parameters.