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Properties of very n-rich He isotopes

Onglets principaux

Fomichev, A. S. Ninane, Alain [UCL]

Low-energy spectra of the He-8,He-10 nuclei were investigated in the (t, p)-type reactions at small centre-of-mass angles using similar to 25AMeV beams of He-6 and He-8 nuclei. The 0(+) ground state (g.s.) of He-8 and excited states, 2(+) at 3.6-3.9MeV and (1(+)) at 5.3-5.5 MeV, were populated with cross-sections of 200, 100-250, and 90-125 mu b/sr, respectively. To account for a near-threshold anomaly observed in the He-8 spectrum the population of a 1(-) continuum (soft dipole excitation) was considered. The lowest-energy group of events in the He-10 spectrum was observed at similar to 3MeV with a cross-section of similar to 140 mu b/sr. This result is consistent with the previously reported observation of He-10 providing a new g.s. position for He-10 at about 3MeV.

Type de document Communication à un colloque (Conference Paper) – Présentation orale avec comité de sélection
Année de publication 2009
Langue Anglais
Conférence "5th International Conference on Exotic Nuclei and Atomic Masses (ENAM'08)", Ryn(Poland) (Sep 07-13, 2008)
Information sur le périodique "European Physical Journal A. Hadrons and Nuclei" - Vol. 42, no. 3, p. 465-469 (2009)
Peer reviewed oui
issn 1434-6001
e-issn 1434-601X
Editeur Springer (New York)
Affiliations UCL - Autre
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Référence bibliographique Fomichev, A. S. ; Ninane, Alain ; et. al. Properties of very n-rich He isotopes.5th International Conference on Exotic Nuclei and Atomic Masses (ENAM'08) (Ryn(Poland), Sep 07-13, 2008). In: European Physical Journal A. Hadrons and Nuclei, Vol. 42, no. 3, p. 465-469 (2009)
Permalien http://hdl.handle.net/2078.1/58672