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

Summary, in English

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.

• Author: H. Simon; M Meister; T Aumann; M J G Borge; L V Chulkov; U. Datta Pramanik; Th W Elze; H. Emling; C Forssén; H Geissel; Margareta Hellström; B. Jonson; J. V. Kratz; R. Kulessa; Y. Leifels; K. Markenroth; G. Münzenberg; F. Nickel; T. Nilsson; G. Nyman; A Richter; K. Riisager; C. Scheidenberger; G Schrieder; O Tengblad; M V Zhukov
• Publishing year: 2007-07-15
• Language: English
• Pages: 267-302
• Publication/Series: Nuclear Physics A
• Volume: 791
• Issue: 3-4
• Links: http://dx.doi.org/10.1016/j.nuclphysa.2007.04.021
• Document type: Journal article
• Publisher: Elsevier
• Status: Published
• ISBN/ISSN/Other: ISSN: 0375-9474