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β -delayed proton emission from P26 and S27

Janiak, Ł. ; Sokołowska, N. ; Bezbakh, A.A. ; Ciemny, A.A. ; Czyrkowski, H. ; Dąbrowski, R. ; Dominik, W. ; Fomichev, A.S. ; Golovkov, M.S. ; Gorshkov, A.V. ; Janas, Z. ; Kamiński, G. ; Knyazev, A.G. ; Krupko, S.A. ; Kuich, M. ; Mazzocchi, C. ; Mentel, M. ; Pfützner, M. ; Pluciński, P. ; Pomorski, M. ; Slepniev, R.S. ; Zalewski, B.

Published in: Phys.Rev.
Year: 2017
Vol.: C95    Num./Issue: 3
Page No: 034315
Pages: 9
Year: 2017-03-16 published

Abstract: Delayed emission of protons following β decay of neutron deficient nuclei P26 and S27 was investigated at the ACCULINNA separator in the Flerov Laboratory of Nuclear Reactions at Dubna. Ions of interest, identified in flight, were implanted into the active volume of the gaseous optical time projection chamber, which allowed us to record tracks of charged particles emitted in the decay. Total branching ratios for β-delayed proton emission and for β-delayed two-proton emission were determined. In addition, energy spectra for delayed protons below 2 MeV were established. Our findings for P26 agree with results of previous experiments. In the case of S27, however, the observed probability of delayed proton emission is an order of magnitude larger than reported in literature. Two new strong proton transitions were identified representing decays of the first two excited states of P27 to the ground state of Si26. The probability ratio of γ-to-proton emission from these states is discussed.

Note: *Brief entry*

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DOI: 10.1103/PhysRevC.95.034315
 Запись создана 2017-04-03, последняя модификация 2017-04-03

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