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Título : He-8 - He-6: a comparative study of electromagnetic fragmentation reactions
Autor : Meister, M., Markenroth, K., Aleksandrov, D., Aumann, T., Baumann, T., García Borge, María José, Chulkov, L. V., Cortina-Gil, D., Eberlein, B., Elze, Th. W., Emling, H., Geissel, H., Hellström, M., Jonson, B., Kratz, J. V., Kulessa, R., Leistenschneider, A., Mukha, I., Münzenberg, G., Nickel, F., Nilsson, T., Nyman, G., Pfützner, M., Pribora, V., Richter, Achim W., Riisager, K., Scheidenberger, C., Schrieder, G., Simon, H., Tengblad, Olof, Zhukov, M. V.
Palabras clave : Nuclear Reactions: Pb(He-8,xn He-6), E=227 MeV/nucleon
Pb(He-6,xnα), E=240 MeV/nucleon
Measured σ, σ(Θ), σ(E)
He-8 deduced resonance energy
[PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19
Fecha de publicación : 25-Mar-2002
Editor: Elsevier
Resumen: Dissociation of a 227 MeV/u He-8 beam in a lead target has been studied in a kinematically complete experiment. The results are compared with similar data from the well-known halo nucleus He-6. Coulomb-nuclear interference in the inelastic channel gives evidence for a I-π = 1- resonance in He-8 at E-x = 4.15 MeV. The deduced B(E1) value of 0.38 ± 0.07 e(2) fm(2) indicates a uniform distribution of the four neutrons around the α-particle core.
Descripción : 14 pages, 1 table, 2 figures.-- PACS nrs.:27.20.+n; 24.70.+.-- Available online Oct 8, 2001.
Versión del editor:
ISSN: 0375-9474
DOI: 10.1016/S0375-9474(01)01305-7
Citación : Nuclear Physics A 700(1-2): 3–16 (2002)
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