2020 Impact factor 3.043
Hadrons and Nuclei

Eur. Phys. J. A 11, 247-249 (2001)

Short Note
First observation of 55,56Zn

J. Giovinazzo1, B. Blank1, C. Borcea2, M. Chartier1, S. Czajkowski1, G. de France3, R. Grzywacz4, Z. Janas4, M. Lewitowicz3, F. de Oliveira Santos3, M. Pfützner4, M.S. Pravikoff1 and J.C. Thomas1

1  Centre d'Etudes Nucléaires de Bordeaux-Gradignan, Le Haut-Vigneau, B.P. 120, F-33175 Gradignan Cedex, France
2  Institute of Atomic Physics, P.O. Box MG6, Bucharest-Margurele, Romania
3  Grand Accélérateur National d'Ions Lourds, B.P. 5027, F-14076 Caen Cedex, France
4  Institute of Experimental Physics, University of Warsaw, PL-00-681 Warsaw, Hoza 69, Poland


(Received: 31 October 2000 Communicated by J. Äystö)

In an experiment at the SISSI/LISE3 facility of GANIL, the most proton-rich zinc isotopes 55,56Zn have been observed for the first time. The experiment was performed using a high-intensity 58Ni beam at 74.5 MeV/nucleon impinging on a nickel target. The identification of 55,56Zn opens the way to 54Zn, a good candidate for two-proton radioactivity according to theoretical predictions.

27.40.+z - $39 \leq A \leq 58$ .
21.10.Dr - Binding energies and masses.
23.50.+z - Decay by proton emission.
25.70.Mn - Projectile and target fragmentation.

© Società Italiana di Fisica, Springer-Verlag 2001