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Study of β-delayed charged particle emission of 11Li : Evidence of new decay channels

Madurga, M.; Borge, M. J G; Angelique, J. C.; Bao, L.; Bergmann, U.; Butǎ, A.; Cederkäll, J. LU ; Daugas, J. M.; Diget, C. Aa and Fraile, L. M., et al. (2008) In Journal of Physics: Conference Series 111(1).
Abstract

The break-up of the 18.2 MeV state in 11Be was studied in a 11Li β-decay experiment. We report here on the study of the dominating breakup channels involving na6He or 3n2α in the final state, with special emphasis dedicated in this contribution to the three-particle channel. The two emitted charged particles were detected in coincidence using a highly segmented experimental set-up. The observed experimental energy-vs-energy scatter plot indicates a sequential breakup where nuclei of mass 4, alpha particles, and mass 7, 7He, are involved. A Monte-Carlo simulation of the sequential channel, 11Be* → α + 7He → nα6He was performed and compared to the experimental... (More)

The break-up of the 18.2 MeV state in 11Be was studied in a 11Li β-decay experiment. We report here on the study of the dominating breakup channels involving na6He or 3n2α in the final state, with special emphasis dedicated in this contribution to the three-particle channel. The two emitted charged particles were detected in coincidence using a highly segmented experimental set-up. The observed experimental energy-vs-energy scatter plot indicates a sequential breakup where nuclei of mass 4, alpha particles, and mass 7, 7He, are involved. A Monte-Carlo simulation of the sequential channel, 11Be* → α + 7He → nα6He was performed and compared to the experimental data and to a simulation of the direct break-up of the 18.2 MeV state nα6He by phase space energy distribution. The energy-versus-energy plot are explained by the sequential simulation but not by the phase space simulation. © 2008 IOP Publishing Ltd.

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Journal of Physics: Conference Series
volume
111
issue
1
publisher
IOP Publishing
external identifiers
  • scopus:44649130740
ISSN
1742-6588
DOI
10.1088/1742-6596/111/1/012024
language
English
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no
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87600f53-b06c-4ae2-8563-ac67b3741a1d
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2016-12-20 14:10:59
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2017-08-22 16:14:26
@article{87600f53-b06c-4ae2-8563-ac67b3741a1d,
  abstract     = {<p>The break-up of the 18.2 MeV state in <sup>11</sup>Be was studied in a <sup>11</sup>Li β-decay experiment. We report here on the study of the dominating breakup channels involving na<sup>6</sup>He or 3n2α in the final state, with special emphasis dedicated in this contribution to the three-particle channel. The two emitted charged particles were detected in coincidence using a highly segmented experimental set-up. The observed experimental energy-vs-energy scatter plot indicates a sequential breakup where nuclei of mass 4, alpha particles, and mass 7, <sup>7</sup>He, are involved. A Monte-Carlo simulation of the sequential channel, <sup>11</sup>Be* → α + <sup>7</sup>He → nα<sup>6</sup>He was performed and compared to the experimental data and to a simulation of the direct break-up of the 18.2 MeV state nα<sup>6</sup>He by phase space energy distribution. The energy-versus-energy plot are explained by the sequential simulation but not by the phase space simulation. © 2008 IOP Publishing Ltd.</p>},
  articleno    = {012024},
  author       = {Madurga, M. and Borge, M. J G and Angelique, J. C. and Bao, L. and Bergmann, U. and Butǎ, A. and Cederkäll, J. and Daugas, J. M. and Diget, C. Aa and Fraile, L. M. and Fynbo, H. O U and Jeppesen, H. B. and Jonson, B. and Lienard, E. and Marechal, F. and Marques, M. and Meot, V. and Negoita, F. and Nilsson, T. and Nyman, G. and Perrot, F. and Riisager, K. and Roig, O. and Tengblad, O. and Tengborn, E. and Turrion, M. and Rolander, K. W.},
  issn         = {1742-6588},
  language     = {eng},
  month        = {05},
  number       = {1},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics: Conference Series},
  title        = {Study of β-delayed charged particle emission of <sup>11</sup>Li : Evidence of new decay channels},
  url          = {http://dx.doi.org/10.1088/1742-6596/111/1/012024},
  volume       = {111},
  year         = {2008},
}