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β -delayed proton emission from P 26 and S 27

Janiak, M.; Sokołowska, N.; Bezbakh, A.; Ciemny, A. A.; Czyrkowski, H.; Dabrowski, R.; Dominik, W.; Fomichev, A. S.; Golovkov, M. S. and Gorshkov, A. V., et al. (2017) In Physical Review C: covering nuclear physics 95(3).
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... (More)

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.

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Physical Review C: covering nuclear physics
volume
95
issue
3
publisher
American Physical Society
external identifiers
  • scopus:85015760688
  • wos:000396701600001
ISSN
2469-9985
DOI
10.1103/PhysRevC.95.034315
language
English
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yes
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963fba5c-56f0-4476-b780-fbfee3294d5b
date added to LUP
2017-04-05 13:52:34
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2018-04-15 04:42:30
@article{963fba5c-56f0-4476-b780-fbfee3294d5b,
  abstract     = {<p>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.</p>},
  articleno    = {034315},
  author       = {Janiak, M. and Sokołowska, N. and Bezbakh, A. and Ciemny, A. A. and Czyrkowski, H. and Dabrowski, R. and Dominik, W. and Fomichev, A. S. and Golovkov, M. S. and Gorshkov, A. V. and Janas, Z and Kamiński, G. and Knyazev, A. G. and Krupko, S. A. and Kuich, M. and Mazzocchi, C and Mentel, Marek and Pfützner, M and Pluciński, P. and Pomorski, M. and Slepniev, R. S. and Zalewski, B.},
  issn         = {2469-9985},
  language     = {eng},
  month        = {03},
  number       = {3},
  publisher    = {American Physical Society},
  series       = {	Physical Review C: covering nuclear physics},
  title        = {β -delayed proton emission from P 26 and S 27},
  url          = {http://dx.doi.org/10.1103/PhysRevC.95.034315},
  volume       = {95},
  year         = {2017},
}