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β -delayed proton emission from P 26 and S 27

Janiak, M. (author)
University of Warsaw
Sokołowska, N. (author)
University of Warsaw,AGH University of Science and Technology
Bezbakh, A. (author)
Joint Institute for Nuclear Research, Dubna
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Ciemny, A. A. (author)
University of Warsaw
Czyrkowski, H. (author)
University of Warsaw
Dabrowski, R. (author)
University of Warsaw
Dominik, W. (author)
University of Warsaw
Fomichev, A. S. (author)
Joint Institute for Nuclear Research, Dubna
Golovkov, M. S. (author)
Dubna University,Joint Institute for Nuclear Research, Dubna
Gorshkov, A. V. (author)
Joint Institute for Nuclear Research, Dubna
Janas, Z (author)
University of Warsaw
Kamiński, G. (author)
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences,Joint Institute for Nuclear Research, Dubna
Knyazev, A. G. (author)
Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Joint Institute for Nuclear Research, Dubna
Krupko, S. A. (author)
Joint Institute for Nuclear Research, Dubna
Kuich, M. (author)
University of Warsaw
Mazzocchi, C (author)
University of Warsaw
Mentel, Marek (author)
Joint Institute for Nuclear Research, Dubna,AGH University of Science and Technology
Pfützner, M (author)
University of Warsaw
Pluciński, P. (author)
Joint Institute for Nuclear Research, Dubna,AGH University of Science and Technology
Pomorski, M. (author)
University of Warsaw
Slepniev, R. S. (author)
Joint Institute for Nuclear Research, Dubna
Zalewski, B. (author)
University of Warsaw,Joint Institute for Nuclear Research, Dubna
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 (creator_code:org_t)
2017
2017
English.
In: Physical Review C: covering nuclear physics. - 2469-9985. ; 95:3
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • 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.

Subject headings

NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (hsv//eng)

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