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Beta-delayed proton emission from 20Mg

Lund, M. V. ; Andreyev, A. ; Borge, M. J G ; Cederkäll, J. LU ; De Witte, H. ; Fraile, L. M. ; Fynbo, H. O U ; Greenlees, P. T. ; Harkness-Brennan, L. J. and Howard, A. M. , et al. (2016) In European Physical Journal A 52(10).
Abstract

Beta-delayed proton emission from 20 Mg has been measured at ISOLDE, CERN, with the ISOLDE Decay Station (IDS) setup including both charged-particle and gamma-ray detection capabilities. A total of 27 delayed proton branches were measured including seven so far unobserved. An updated decay scheme, including three new resonances above the proton separation energy in 20 Na and more precise resonance energies, is presented. Beta-decay feeding to two resonances above the Isobaric Analogue State (IAS) in 20 Na is observed. This may allow studies of the 4032.9(2.4)keV resonance in 19 Ne through the beta decay of 20 Mg, which is important for the astrophysically relevant reaction... (More)

Beta-delayed proton emission from 20 Mg has been measured at ISOLDE, CERN, with the ISOLDE Decay Station (IDS) setup including both charged-particle and gamma-ray detection capabilities. A total of 27 delayed proton branches were measured including seven so far unobserved. An updated decay scheme, including three new resonances above the proton separation energy in 20 Na and more precise resonance energies, is presented. Beta-decay feeding to two resonances above the Isobaric Analogue State (IAS) in 20 Na is observed. This may allow studies of the 4032.9(2.4)keV resonance in 19 Ne through the beta decay of 20 Mg, which is important for the astrophysically relevant reaction 15O(α,γ)19Ne. Beta-delayed protons were used to obtain a more precise value for the half-life of 20 Mg, 91.4(1.0)ms.

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type
Contribution to journal
publication status
published
subject
in
European Physical Journal A
volume
52
issue
10
article number
304
publisher
Springer
external identifiers
  • wos:000391806600001
  • scopus:84989908535
ISSN
1434-6001
DOI
10.1140/epja/i2016-16304-x
language
English
LU publication?
yes
id
4ff948fb-07a2-459a-be3c-a601b60030d3
date added to LUP
2016-10-26 08:33:32
date last changed
2025-01-12 13:44:52
@article{4ff948fb-07a2-459a-be3c-a601b60030d3,
  abstract     = {{<p>Beta-delayed proton emission from <sup>20</sup> Mg has been measured at ISOLDE, CERN, with the ISOLDE Decay Station (IDS) setup including both charged-particle and gamma-ray detection capabilities. A total of 27 delayed proton branches were measured including seven so far unobserved. An updated decay scheme, including three new resonances above the proton separation energy in <sup>20</sup> Na and more precise resonance energies, is presented. Beta-decay feeding to two resonances above the Isobaric Analogue State (IAS) in <sup>20</sup> Na is observed. This may allow studies of the 4032.9(2.4)keV resonance in <sup>19</sup> Ne through the beta decay of <sup>20</sup> Mg, which is important for the astrophysically relevant reaction <sup>15</sup>O(α,γ)<sup>19</sup>Ne. Beta-delayed protons were used to obtain a more precise value for the half-life of <sup>20</sup> Mg, 91.4(1.0)ms.</p>}},
  author       = {{Lund, M. V. and Andreyev, A. and Borge, M. J G and Cederkäll, J. and De Witte, H. and Fraile, L. M. and Fynbo, H. O U and Greenlees, P. T. and Harkness-Brennan, L. J. and Howard, A. M. and Huyse, M. and Jonson, B. and Judson, D. S. and Kirsebom, O. S. and Konki, J. and Kurcewicz, J. and Lazarus, I. and Lica, R. and Lindberg, S. and Madurga, M. and Marginean, N. and Marginean, R. and Marroquin, I. and Mihai, C. and Munch, M. and Nacher, E. and Negret, A. and Nilsson, T. and Page, R. D. and Pascu, S. and Perea, A. and Pucknell, V. and Rahkila, P. and Rapisarda, E. and Riisager, K. and Rotaru, F. and Sotty, C. and Stanoiu, M. and Tengblad, O. and Turturica, A. and Van Duppen, P. and Vedia, V. and Wadsworth, R. and Warr, N.}},
  issn         = {{1434-6001}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{10}},
  publisher    = {{Springer}},
  series       = {{European Physical Journal A}},
  title        = {{Beta-delayed proton emission from <sup>20</sup>Mg}},
  url          = {{http://dx.doi.org/10.1140/epja/i2016-16304-x}},
  doi          = {{10.1140/epja/i2016-16304-x}},
  volume       = {{52}},
  year         = {{2016}},
}