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Title: Lithium isotopes beyond the drip line
Authors: Aksyutina, Yu., Johansson, H. T., Adrich, P., Aksouh, F., Aumann, T., Boretzky, K., García Borge, María José, Chatillon, A., Chulkov, L. V., Cortina-Gil, D., Pramanik, U. Datta, Emling, H., Forssén, C., Fynbo, H. O. U., Geissel, H., Hellström, M., Ickert, G., Jones, K. L., Jonson, B., Kliemkiewicz, A., Kratz, J. V., Kulessa, R., Lantz, M., LeBleis, T., Lindahl, A. O., Mahata, K., Matos, M., Meister, M., Münzenberg, G., Nilsson, T., Nyman, K. G., Palit, R., Pantea, M., Paschalis, S., Prokopowicz, W., Reifarth, R., Richter, I. A., Riisager, K., Schrieder, G., Simon, H., Sümmerer, K., Tengblad, Olof, Walus, W., Weick, H., Zhukov, M. V.
Keywords: Lithium isotopes
[PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19
[PACS] Polarization phenomena in reactions
Issue Date: 3-Aug-2008
Publisher: Elsevier
Abstract: 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+2n 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+2n 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+2n threshold with a width around 2 MeV has been found.
Description: 5 pages, 3 figures, 1 table.-- PACS nrs.: 27.20.+n, 24.70.+s.-- Printed version published Sep 11, 2008.
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ISSN: 0370-2693
???metadata.dc.identifier.doi???: 10.1016/j.physletb.2008.07.093
Citation: Physics Letters B 666(5): 430–434 (2008)
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