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Nuclear and Coulomb breakup of B-8

AuthorsCortina-Gil, D.; Fernández-Vázquez, J.; Attallah, F.; Baumann, T.; Benlliure, J.; García Borge, María José CSIC ORCID; Chulkov, L. V.; Forssén, C.; Fraile, Luis M. CSIC ORCID; 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.
KeywordsKnock-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
Issue Date8-Feb-2003
CitationNuclear Physics A 720(1-2): 3–19 (2003)
AbstractOne-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%).
Description17 pages, 4 tables, 9 figures.-- PACS nrs.: 25.60.Dz; 25.60.Gc; 27.20.+n.-- Printed version published Jun 2, 2003.
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