Observations of the Gamow-Teller resonance in the rare-earth nuclei above 146 Gd populated in β decay

Observations of the Gamow-Teller resonance in the rare-earth nuclei above Gd populated in β decay E. Nácher,1,* B. Rubio,1,† A. Algora,1,‡ D. Cano-Ott,1,§ J. L. Taı́n,1 A. Gadea,1 J. Agramunt,1 M. Gierlik,2 M. Karny,2 Z. Janas,2 E. Roeckl,3 A. Blazhev,3,‖ R. Collatz,3 J. Döring,3,¶ M. Hellström,3 Z. Hu,3 R. Kirchner,3,# I. Mukha,3 C. Plettner,3 M. Shibata,3 K. Rykaczewski,4 L. Batist,5 F. Moroz,5 V. Wittmann,5,** and J. J. Valiente-Dobón6,†† 1IFIC, CSIC-Universidad Valencia, Apartado Postal E-22085, 46071 Valencia, Spain 2Faculty of Physics, University of Warsaw, PL-02-093 Warsaw, Poland 3Gesellschaft für Schwerionenforschung, D-64291 Darmstadt, Germany 4Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6371, USA 5St. Petersburg Nuclear Physics Institute, 188-350 Gatchina, Russia 6Department of Physics, University of Surrey, Guildford GU2 5XH, United Kingdom (Received 26 October 2015; published 13 January 2016)