학술논문
Proton spectroscopy of 48Ni, 46Fe, and 44Cr
Document Type
Working Paper
Author
Pomorski, M.; Pfützner, M.; Dominik, W.; Grzywacz, R.; Stolz, A.; Baumann, T.; Berryman, J. S.; Czyrkowski, H.; Dąbrowski, R.; Fijałkowska, A.; Ginter, T.; Johnson, J.; Kamiński, G.; Larson, N.; Liddick, S. N.; Madurga, M.; Mazzocchi, C.; Mianowski, S.; Miernik, K.; Miller, D.; Paulauskas, S.; Pereira, J.; Rykaczewski, K. P.; Suchyta, S.
Source
Subject
Language
Abstract
Results of decay spectroscopy on nuclei in vicinity of the doubly magic 48Ni are presented. The measurements were performed with a Time Projection Chamber with optical readout which records tracks of ions and protons in the gaseous volume. Six decays of 48Ni including four events of two-proton ground-state radioactivity were recorded. An advanced reconstruction procedure yielded the 2p decay energy for 48Ni of Q2p = 1.29(4) MeV. In addition, the energy spectra of \b{eta}-delayed protons emitted in the decays of 44Cr and 46Fe, as well as half-lives and branching ratios were determined. The results were found to be consistent with the previous measurements made with Si detectors. A new proton line in the decay of 44Cr corresponding to the decay energy of 760 keV is reported. The first evidence for the \b{eta}2p decay of 46 Fe, based on one clear event, is shown.
Comment: 13 pages, 12 figures, accepted for publication in Physical Review C
Comment: 13 pages, 12 figures, accepted for publication in Physical Review C