Eur. Phys. J. A (2020) 56: 68
https://doi.org/10.1140/epja/s10050-020-00070-7

Regular Article – Experimental Physics

First application of the Oslo method in inverse kinematics

¹ Department of Physics, University of Oslo, 0316, Oslo, Norway
² iThemba LABS, P.O. Box 722, Somerset West, 7129, South Africa
³ Université de Strasbourg, IPHC, 23 rue du Loess, 67037, Strasbourg, France
⁴ CNRS, UMR7178, 67037, Strasbourg, France
⁵ Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA, 94550-9234, USA
⁶ Department of Physics, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
⁷ Department of Physics, University of the Western Cape, P/B X17, Bellville, 7535, South Africa
⁸ Department of Physics, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
⁹ Present address: Department of Physics, University of Zululand, Private Bag X1001, KwaDlangezwa, 3886, South Africa
¹⁰ Institut für Strahlenphysik, Helmholtz-Zentrum Dresden-Rossendorf, 01328, Dresden, Germany

^* e-mail: vetlewi@fys.uio.no

Received: 12 July 2019
Accepted: 14 January 2020
Published online: 20 February 2020

Abstract

The -ray strength function (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– coincidence events from the reaction were measured at iThemba LABS and the SF and NLD in was obtained. The low-energy region of the SF is compared to shell-model calculations, which suggest this region to be dominated by M1 strength. The SF and NLD are used as input parameters to Hauser–Feshbach calculations to constrain cross sections of nuclei using the TALYS reaction code. These results are compared to data from direct measurements.