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Search for proton emission of the isomeric 10+ state in 54Ni

Stahl, K. ; Wendt, A. ; Reiter, P. ; Rudolph, D. LU ; Blazhev, A. ; Bruyneel, B. ; Eberth, J. ; Fahlander, C. LU ; Fransen, C. and Golubev, P. LU , et al. (2020) In European Physical Journal A 56(1).
Abstract

Several experiments were conducted at the 10 MV Van-de-Graaff tandem accelerator at the Institute of Nuclear Physics, Cologne, to detect proton emission from the isomeric 6457-keV 10+ state in 54Ni. Excitation functions for two fusion–evaporation reactions were measured to maximise the population of the rare two-neutron evaporation channel from a 56Ni compound nucleus. The search for delayed proton emission was based on the 28Si(28Si,2n)54Ni reaction at a beam energy of 70 MeV. For this reaction, a cross-section limit for the population of the 10+ state in 54Ni and its proton-decay branch was determined to be σ< 22 nb.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
nuclear structure, proton emission
in
European Physical Journal A
volume
56
issue
1
article number
22
pages
9 pages
publisher
Springer
external identifiers
  • scopus:85078162591
ISSN
1434-6001
DOI
10.1140/epja/s10050-020-00029-8
project
Nuclear Structure at the Limits: Isotope-selective Spectroscopy
language
English
LU publication?
yes
id
9f022183-daf9-4d15-a3a4-fac00aae1772
date added to LUP
2020-02-06 20:59:01
date last changed
2020-12-29 09:22:57
@article{9f022183-daf9-4d15-a3a4-fac00aae1772,
  abstract     = {<p>Several experiments were conducted at the 10 MV Van-de-Graaff tandem accelerator at the Institute of Nuclear Physics, Cologne, to detect proton emission from the isomeric 6457-keV 10<sup>+</sup> state in <sup>54</sup>Ni. Excitation functions for two fusion–evaporation reactions were measured to maximise the population of the rare two-neutron evaporation channel from a <sup>56</sup>Ni compound nucleus. The search for delayed proton emission was based on the <sup>28</sup>Si(<sup>28</sup>Si,2n)<sup>54</sup>Ni reaction at a beam energy of 70 MeV. For this reaction, a cross-section limit for the population of the 10<sup>+</sup> state in <sup>54</sup>Ni and its proton-decay branch was determined to be σ&lt; 22 nb.</p>},
  author       = {Stahl, K. and Wendt, A. and Reiter, P. and Rudolph, D. and Blazhev, A. and Bruyneel, B. and Eberth, J. and Fahlander, C. and Fransen, C. and Golubev, P. and Hess, H. and Hoischen, R. and Holler, A. and Kalkühler, M. and Kotthaus, T. and Lersch, D. and Pascovici, G. and Seidlitz, M. and Siebeck, B. and Taprogge, J. and Warr, N. and Wiens, A. and Zell, O.},
  issn         = {1434-6001},
  language     = {eng},
  month        = {01},
  number       = {1},
  publisher    = {Springer},
  series       = {European Physical Journal A},
  title        = {Search for proton emission of the isomeric 10<sup>+</sup> state in <sup>54</sup>Ni},
  url          = {http://dx.doi.org/10.1140/epja/s10050-020-00029-8},
  doi          = {10.1140/epja/s10050-020-00029-8},
  volume       = {56},
  year         = {2020},
}