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Título : Nuclear and Coulomb breakup of B-8
Autor : Cortina-Gil, D., Fernández-Vázquez, J., Attallah, F., Baumann, T., Benlliure, J., García Borge, María José, Chulkov, L., Forssén, C., Fraile, Luis M., Geissel, H., Gerl, J., Itahashi, K., Janik, R., Jonson, B., Karlsson, S., Lenske, H., Mandal, S., Markenroth, K., Meister, M., Mocko, M., Münzenberg, G., Ohtsubo, T., Ozawa, A., Parfenova, Yu., Pribora, V., Richter, Achim W., Riisager, K., Schneider, R., Scheit, H., Schrieder, G., Shulgina, N., Simon, H., Sitar, B., Stolz, A., Strmen, P., Sümmerer, K., Szarka, I., Wan, S., Weick, H., Zhukov, M. V.
Palabras clave : Knock-out reactions
Halo nuclei
Ground-state properties
Core excitation
Longitudinal momentum
One-proton removal cross section
Y coincidence
[PACS] Interaction and reaction cross sections
[PACS] Breakup and momentum distributions
[PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19
Fecha de publicación : 8-Feb-2003
Editor: Elsevier
Resumen: One-proton removal reactions of 936 MeV/u B-8 have been studied with carbon and lead as breakup targets. Using the FRS at GSI, the longitudinal momentum distributions of the Be-7 fragments and the one-proton removal cross section of B-8 were measured. The relative contributions of the breakup channels leading to Be-7 in its ground state and excited state at 429 keV (Be-7*) have been determined from measurements of gamma rays in coincidence with the fragments from the one-proton removal reaction. The experimental breakup data are discussed in the context of a theoretical (α + He-3 + p) three-body model. The combined data from the two targets allow a determination of the weight of the Be-7* component in the B-8 ground state wave function as (13.3 ± 2.2%).
Descripción : 17 pages, 4 tables, 9 figures.-- PACS nrs.: 25.60.Dz; 25.60.Gc; 27.20.+n.-- Printed version published Jun 2, 2003.
Versión del editor:
ISSN: 0375-9474
DOI: 10.1016/S0375-9474(03)00671-7
Citación : Nuclear Physics A 720(1-2): 3–19 (2003)
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