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Closed Access item One-neutron knockout of O-23

Authors:Cortina-Gil, D.
Fernández-Vázquez, J.
Aumann, T.
Baumann, T.
Benlliure, J.
García Borge, María José
Chulkov, L. V.
Pramanik, U. Datta
Forssén, C.
Fraile, Luis M.
Geissel, H.
Gerl, J.
Hammache, F.
Itahashi, K.
Janik, R.
Jonson, B.
Mandal, S.
Markenroth, K.
Meister, M.
Mocko, M.
Münzenberg, G.
Ohtsubo, T.
Ozawa, A.
Prezado, Yolanda
Pribora, V.
Riisager, K.
Scheit, H.
Schneider, R.
Schrieder, G.
Simon, H.
Sitar, B.
Stolz, A.
Strmen, P.
Sümmerer, K.
Szarka, I.
Weick, H.
Keywords:[PACS] Breakup and momentum distributions, [PACS] Interaction and reaction cross-sections, [PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19
Issue Date:14-Jul-2005
Publisher:Società Italiana di Fisica
Citation:The European Physical Journal A: Hadrons and Nuclei 25(Suppl.1): 343-346 (2005)
Abstract:Breakup reactions were used to study the ground-state configuration of the neutron-rich isotope O-23. The O-22 fragments produced in one-nucleon removal from O-23 at 938 MeV/nucleon in a carbon target were detected in coincidence with de-exciting γ rays, allowing to discern between 220 ground-state and excited-states contributions. From the comparison of exclusive experimental momentum distributions for the one-neutron removal channel to theoretical momentum distributions calculated in an Eikonal model for the knockout process, and spin and parity assignment of I-π = 1/2(+) was deduced for the 230 ground state. This result solved the existent experimental discrepancy.
Description:4 pages, 4 figures, 1 table.-- PACS nrs.: 25.60.Gc, 25.60.Dz, 27.20.+n.
Publisher version (URL):http://dx.doi.org/10.1140/epjad/i2005-06-149-2
ISSN:1434-6001 (Print)
1434-601X (Online)
Appears in Collections:(CFMAC-IEM) Artículos

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