June 2011

Journal

First observation of two-proton radioactivity in 48Ni

By:
Pomorski, M.; Pfutzner, M.; Dominik, W.; Grzywacz, Robert K; Baumann, T.; Berryman, J.; Czyrkowski, H.; Dabrowski, Ryszard; Ginter, T. N.; Johnson, James W; Kaminski, A.; Kuzniak, A.; Larson, N.; Liddick, S. N.; Madurga, M.; Mazzocchi, C.; Miernik, Krzysztof A; Miller, D; Paulauskas, Stanley; Pereira, J.; Rykaczewski, Krzysztof P; Stolz, A.; Suchyta, S.
Journal Name:
Physical Review C
Page Number:
061303
Volume:
83
Issue Number:
6
Publication Date:
June 2011
View DOI Listing:
https://doi.org/10.1103/PhysRevC.83.061303

Abstract

The decay of the extremely neutron deficient 48Ni was studied by means of an imaging time projection chamber which allowed the recording of tracks of charged particles. Decays of 6 atoms were observed. Four of them clearly correspond to two-proton radioactivity providing the first direct evidence for this decay mode in 48Ni. Two decays represent -delayed proton emission. The half-life of 48Ni is determined to be T1=2 = 2:1+1:4 ô€€€0:4 ms.


Related Researchers