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Systematic investigation of the drip-line nuclei 11Li and 14Be and their unbound subsystems 10Li and 13Be

Simon, H.; Meister, M; Aumann, T; Borge, M J G; Chulkov, L V; Datta Pramanik, U.; Elze, Th W; Emling, H.; Forssén, C and Geissel, H, et al. (2007) In Nuclear Physics A 791(3-4). p.267-302
Abstract

Fragmentation reactions in a carbon target with beams of 11Li and 14Be at relativistic energies have been studied in a kinematically complete experiment at the ALADIN-LAND setup at GSI. Excited states in 11Li and 14Be were obtained from the data in the inelastic channel. The measured cross sections with the core nucleus in the final state show that in the 14Be case core polarization plays an important role. In the one-neutron knockout channels the measured angular correlations between fragment and neutron are asymmetric, which demonstrates the presence of states with different parities in the 11Li and 14Be ground states. For 10Li a low-lying virtual... (More)

Fragmentation reactions in a carbon target with beams of 11Li and 14Be at relativistic energies have been studied in a kinematically complete experiment at the ALADIN-LAND setup at GSI. Excited states in 11Li and 14Be were obtained from the data in the inelastic channel. The measured cross sections with the core nucleus in the final state show that in the 14Be case core polarization plays an important role. In the one-neutron knockout channels the measured angular correlations between fragment and neutron are asymmetric, which demonstrates the presence of states with different parities in the 11Li and 14Be ground states. For 10Li a low-lying virtual s-state, a p-state and evidence for a d-state could be extracted from the data, while the 12Be+n system shows resonances with more complicated structure.

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publication status
published
in
Nuclear Physics A
volume
791
issue
3-4
pages
36 pages
publisher
Elsevier
external identifiers
  • scopus:34447311700
ISSN
0375-9474
DOI
10.1016/j.nuclphysa.2007.04.021
language
English
LU publication?
no
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139a5afc-a087-4356-81ff-89e847839a3e
date added to LUP
2017-03-06 23:01:23
date last changed
2017-10-08 04:59:41
@article{139a5afc-a087-4356-81ff-89e847839a3e,
  abstract     = {<p>Fragmentation reactions in a carbon target with beams of <sup>11</sup>Li and <sup>14</sup>Be at relativistic energies have been studied in a kinematically complete experiment at the ALADIN-LAND setup at GSI. Excited states in <sup>11</sup>Li and <sup>14</sup>Be were obtained from the data in the inelastic channel. The measured cross sections with the core nucleus in the final state show that in the <sup>14</sup>Be case core polarization plays an important role. In the one-neutron knockout channels the measured angular correlations between fragment and neutron are asymmetric, which demonstrates the presence of states with different parities in the <sup>11</sup>Li and <sup>14</sup>Be ground states. For <sup>10</sup>Li a low-lying virtual s-state, a p-state and evidence for a d-state could be extracted from the data, while the <sup>12</sup>Be+n system shows resonances with more complicated structure.</p>},
  author       = {Simon, H. and Meister, M and Aumann, T and Borge, M J G and Chulkov, L V and Datta Pramanik, U. and Elze, Th W and Emling, H. and Forssén, C and Geissel, H and Hellström, Margareta and Jonson, B. and Kratz, J. V. and Kulessa, R. and Leifels, Y. and Markenroth, K. and Münzenberg, G. and Nickel, F. and Nilsson, T. and Nyman, G. and Richter, A and Riisager, K. and Scheidenberger, C. and Schrieder, G and Tengblad, O and Zhukov, M V},
  issn         = {0375-9474},
  language     = {eng},
  month        = {07},
  number       = {3-4},
  pages        = {267--302},
  publisher    = {Elsevier},
  series       = {Nuclear Physics A},
  title        = {Systematic investigation of the drip-line nuclei <sup>11</sup>Li and <sup>14</sup>Be and their unbound subsystems <sup>10</sup>Li and <sup>13</sup>Be},
  url          = {http://dx.doi.org/10.1016/j.nuclphysa.2007.04.021},
  volume       = {791},
  year         = {2007},
}