Year: 2020
Type: article
Abstract: The $$\gamma $$ γ -ray strength function ( $$\gamma $$ γ SF) and nuclear level density (NLD) have been extracted for the first time from inverse kinematic reactions with the Oslo method. This novel technique allows measurements of these properties across a wide range of previously inaccessible nuclei. Proton– $$\gamma $$ γ coincidence events from the $$\mathrm {d}(^{86}\mathrm {Kr}, \mathrm {p}\gamma )^{87}\mathrm {Kr}$$ d(86Kr,pγ)87Kr reaction were measured at iThemba LABS and the $$\gamma $$ γ SF and NLD in $$^{87}\mathrm {Kr}$$ 87Kr was obtained. The low-energy region of the $$\gamma $$ γ SF is compared to shell-model calculations, which suggest this region to be dominated by M1 strength. The $$\gamma $$ γ SF and NLD are used as input parameters to Hauser–Feshbach calculations to constrain $$(\mathrm {n},\gamma )$$ (n,γ) cross sections of nuclei using the TALYS reaction code. These results are compared to $$^{86}\mathrm {Kr}(n,\gamma )$$ 86Kr(n,γ) data from direct measurements.
Source: The European Physical Journal A
Authors: V. W. Ingeberg, S. Siem, M. Wiedeking, K. Sieja, D. L. Bleuel, C. P. Brits, T. D. Bucher, T. S. Dinoko, J. L. Easton, A. Görgen, M. Guttormsen, P. Jones, B. V. Kheswa, N. A. Khumalo, A. C. Larsen, E. A. Lawrie, J. J. Lawrie, S. N. T. Majola, K. L. Malatji, L. Makhathini, B. Maqabuka, D. Negi, S. P. Noncolela, P. Papka, E. Sahin, R. Schwengner, G. M. Tveten, F. Zeiser, B. R. Zikhali
Institutions: University of Oslo, iThemba Laboratory, Centre National de la Recherche Scientifique, Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Lawrence Livermore National Laboratory, Stellenbosch University, University of the Western Cape, University of Johannesburg, University of Zululand, Helmholtz-Zentrum Dresden-Rossendorf
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,160
OpenAlex ID: W3098596202