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Direct experimental evidence for strong admixture of different parity states in Li-11

AuthorsSimon, H.; Aleksandrov, D.; Aumann, T.; Axelsson, L.; Baumann, T.; García Borge, María José ; Chulkov, L. V.; Collatz, R.; Cub, J.; Dostal, W.; Eberlein, B.; Elze, Th. W.; Emling, H.; Geissel, H.; Grünschloss, A.; Hellström, M.; Holeczek, J.; Holzmann, R.; Jonson, B.; Kratz, J. V.; Kraus, G.; Kulessa, R.; Leifels, Y.; Leistenschneider, A.; Leth, T.; Mukha, I. ; Münzenberg, G.; Nickel, F.; Nilsson, T.; Nyman, G.; Petersen, B.; Pfützner, M.; Richter, Achim W.; Riisager, K.; Scheidenberger, C.; Schrieder, G.; Schwab, W.; Smedberg, M. H.; Stroth, J.; Surowiec, A.; Tengblad, Olof ; Zhukov, M. V.
Keywords[PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19
[PACS] Polarization phenomena in reactions
[PACS] Breakup and momentum distributions
Issue Date19-Jul-1999
PublisherAmerican Physical Society
CitationPhysical Review Letters 83(3): 496-499 (1999)
AbstractPeripheral fragmentation of a 287 MeV/nucleon beam of the halo nucleus Li-11 incident on a carbon target has been studied in a fragment-neutron coincidence experiment. The momentum distribution of the Li-10 fragments gives access to the momentum distribution of the removed neutron in Li-11. From the shape of the distribution, the (1s(1/2))(2) contribution to the mixture of (1s(1/2))(2) and (0p(1/2))(2) components in the ground-state wave function was determined to he (45 ± 10)%. The angular correlation between the knocked out neutron and the one from the decay of Li-10 shows a skew distribution signaling interference of these two different parity states.
Description4 pages, 3 figures.-- PACS nrs.: 27.20.+n, 24.70.+s, 25.60.Gc.
Publisher version (URL)http://link.aps.org/doi/10.1103/PhysRevLett.83.496
Appears in Collections:(CFMAC-IEM) Artículos
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