Study of medium-spin states of neutron-rich 87, 89, 91Rb isotopes

D. A. Torres; R. Chapman; V. Kumar; B. Hadinia; A. Hodsdon; M. Labiche; X. Liang; D. O’Donnell; J. Ollier; R. Orlandi; J. F. Smith; K. -M. Spohr; P. Wady; Z. M. Wang; L. Corradi; E. Fioretto; A. Gadea; G. de Angelis; N. Mărginean; D. R. Napoli; E. Sahin; A. M. Stefanini; J. J. Valiente-Dobón; F. D. Vedova; M. Axiotis; T. Martinez; S. Szilner; D. Bazzacco; S. Beghini; E. Farnea; R. Mărginean; D. Mengoni; G. Montagnoli; F. Recchia; F. Scarlassara; C. A. Ur; S. M. Lenzi; S. Lunardi; T. Kröll; F. Haas; T. Faul; M. Hjorth-Jensen; B. G. Carlsson; S. J. Freeman; A. G. Smith; G. Jones; N. Thompson; G. Pollarolo; G. S. Simpson

doi:10.1140/epja/i2019-12839-6

2023 Impact factor 2.6

Hadrons and Nuclei

Eur. Phys. J. A (2019) 55: 158
https://doi.org/10.1140/epja/i2019-12839-6

Regular Article - Experimental Physics

Study of medium-spin states of neutron-rich ^{87, 89, 91}Rb isotopes

D. A. Torres¹^,2^*, R. Chapman², V. Kumar², B. Hadinia², A. Hodsdon², M. Labiche², X. Liang², D. O’Donnell², J. Ollier², R. Orlandi², J. F. Smith², K. -M. Spohr², P. Wady², Z. M. Wang², L. Corradi³, E. Fioretto³, A. Gadea³, G. de Angelis³, N. Mărginean³, D. R. Napoli³, E. Sahin³, A. M. Stefanini³, J. J. Valiente-Dobón³, F. D. Vedova³, M. Axiotis³, T. Martinez³, S. Szilner⁴, D. Bazzacco⁵, S. Beghini⁵, E. Farnea⁵, R. Mărginean⁵, D. Mengoni⁵, G. Montagnoli⁵, F. Recchia⁵, F. Scarlassara⁵, C. A. Ur⁵, S. M. Lenzi⁵, S. Lunardi⁵, T. Kröll⁵, F. Haas⁶, T. Faul⁶, M. Hjorth-Jensen⁷^,8, B. G. Carlsson⁹, S. J. Freeman¹⁰, A. G. Smith¹⁰, G. Jones¹¹, N. Thompson¹¹, G. Pollarolo¹² and G. S. Simpson¹³

¹ Departamento de Física, Universidad Nacional de Colombia, Bogotá, Colombia
² SUPA, School of Computing, Engineering, and Physical Sciences, University of the West of Scotland, PA1 2BE, Paisley, UK
³ INFN-Laboratori Nazionali di Legnaro, Viale dell’Università 2, I-35020, Legnaro (Padova), Italy
⁴ Ruder Bošković Institute, Zagreb, Croatia
⁵ INFN Sezione di Padova and Dipartimento di Fisica dell’Università, via F. Marzolo 8, I-35131, Padova, Italy
⁶ Institut Pluridisciplinaire Hubert Curien, CNRS-IN2P3, Strasbourg, France
⁷ National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, 48824, East Lansing, MI, USA
⁸ Department of Physics and Center for Computing in Science Education, University of Oslo, N-0316, Oslo, Norway
⁹ Department of Physics, University of Jyväskylä, P.O. Box 35 (YFL), FI-40014, Jyväskylä, Finland
¹⁰ School of Physics and Astronomy, University of Manchester, M13 9PL, Manchester, UK
¹¹ Department of Physics, University of Surrey, GU2 7XH, Guildford, UK
¹² Dipartimento di Fisica Teorica, Università di Torino, and Istituto Nazionale di Fisica Nucleare, 10125, Torino, Italy
¹³ Université Grenoble Alpes, CNRS, LPSC, Institut Polytechnique de Grenoble, IN2P3, F-38026, Grenoble, France

^* e-mail: datorresg@unal.edu.co

Received: 5 March 2019
Accepted: 24 July 2019
Published online: 20 September 2019

Abstract

Excited states of the rubidium isotopes ₃₇ ^{87, 89, 91}Rb have been studied at the INFN Legnaro National Laboratory. Measurements of the $\gamma$ -ray decay of fragments produced in binary grazing reactions resulting from the interaction of a beam of 530 MeV ⁹⁶Zr ions with a ¹²⁴Sn target have been complemented by studies of the $\gamma$ -ray decay of fission fragments produced in the interaction of a beam of 230 MeV ³⁶S ions with a thick ¹⁷⁶Yb target. The structure of the yrast states of ₃₇ ^{87, 89, 91}Rb has been discussed within the context of spherical shell-model and cranked Nilsson-Strutinsky calculations.