Lithium isotopes beyond the drip line

Yu Aksyutina, H. T. Johansson, P. Adrich, F. Aksouh, T. Aumann, K. Boretzky, M. J G Borge, A. Chatillon, L. V. Chulkov, D. Cortina-Gil, U. Datta Pramanik, H. Emling, C. Forssén, H. O U Fynbo, H. Geissel, M. Hellström, G. Ickert, K. L. Jones, B. Jonson*, A. KliemkiewiczJ. V. Kratz, R. Kulessa, M. Lantz, T. LeBleis, A. O. Lindahl, K. Mahata, M. Matos, M. Meister, G. Münzenberg, T. Nilsson, G. Nyman, R. Palit, M. Pantea, S. Paschalis, W. Prokopowicz, R. Reifarth, A. Richter, K. Riisager, G. Schrieder, H. Simon, K. Sümmerer, O. Tengblad, W. Walus, H. Weick, M. V. Zhukov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The unbound isotopes 10Li, 12Li and 13Li have been observed after nucleon-knockout reactions at relativistic energies with 11Li and 14Be beams impinging on a liquid hydrogen target. The channels 9Li + n, 11Li + n and 11Li + 2 n were analysed in the ALADIN-LAND setup at GSI. The 10Li data confirm earlier findings, while the 12Li and 13Li nuclei were observed for the first time. The 11Li + n relative-energy spectrum shows that the ground state of 12Li can be described as a virtual s-state with a scattering length of -13.7(1.6) fm. A broad energy spectrum was found for the 11Li + 2 n channel. Based on the assumption that the relative-energy spectrum is dominated by a correlated background presumably stemming from initial correlations in the 14Be ground-state, evidence for a 13Li resonance at 1.47(31) MeV above the 11Li + 2 n threshold with a width around 2 MeV has been found.

Original languageEnglish
Pages (from-to)430-434
Number of pages5
JournalPhysics Letters B
Issue number5
Publication statusPublished - 11 Sept 2008

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