C 99 , 054332 ( 2019 ) Microscopic structure of coexisting 0 + states in 68 Ni probed via two-neutron transfer

F. Flavigny,1,2 J. Elseviers,2 A. N. Andreyev,3,4 C. Bauer,5 V. Bildstein,6 A. Blazhev,7 B. A. Brown,8 H. De Witte,2 J. Diriken,2,9 V. N. Fedosseev,10 S. Franchoo,1 R. Gernhäuser,11 M. Huyse,2 S. Ilieva,5 S. Klupp,11 Th. Kröll,5 R. Lutter,11 B. A. Marsh,10 D. Mücher,6,11 K. Nowak,11 T. Otsuka,12,13,14,2 J. Pakarinen,15,16,17 N. Patronis,18 R. Raabe,2 F. Recchia,19 P. Reiter,7 T. Roger,20 S. Sambi,2 M. Seidlitz,7 M. D. Seliverstov,2,10,21 B. Siebeck,7 Y. Tsunoda,14 P. Van Duppen,2 M. Vermeulen,3 M. Von Schmid,5 D. Voulot,10 N. Warr,7 F. Wenander,10 and K. Wimmer8,* 1Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France 2KU Leuven, Instituut voor Kernen Stralingsfysica, 3001 Leuven, Belgium 3Department of Physics, University of York, York, YO10 5DD, United Kingdom 4Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan 5Institut für Kernphysik, Technische Universität Darmstadt, Germany 6Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada 7IKP, University of Cologne, D-50937 Cologne, Germany 8Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory,