Nuclear clusters and structure in light nuclei

Journal Article · Fri Feb 27 00:00:00 EST 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1691724· OSTI ID:20632993

Kokalova, Tz; Oertzen, W von; Thummerer, S; Bohlen, H G ^[1]; Milin, M ^[2]; Tumino, A ^[3]; De Angelis, G; Farnea, E; Axiotis, M; Marginean, N; Napoli, D R ^[4]; Lenzi, S M; Ur, C ^[5]; INFN, Padova ^[6]; Rousseau, M; Papka, P ^[7]

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1. Hahn-Meitner-Institut, Glienicker Strasse 100, D-14109 Berlin (Germany)
2. Ruder Boskovic Institute, Zagreb (Croatia)
3. INFN-Laboratori Nazionali del Sud, Catania (Italy)
4. INFN-Laboratori Nazionali di Legnaro, Legnaro (Italy)
5. Dipartimento di Fisica, Padova (Italy)
6. Italy
7. Institut de Recherches Subatomiques, IreS, Strasbourg (France)

We have studied the {gamma}-decay properties of 21Ne up to the limits of the particle emission thresholds in order to establish the band structure. The GASP {gamma}-ray detector array together with the multi-detector array, ISIS, were used for the selection of the reaction channels. The reaction 16O(7Li,pn)21Ne has been studied at E=29 MeV. The observed decays in 21Ne, support the identification of parity doublets with states of opposite parity connected by strong dipole transitions. The behaviour of the octupole deformed bands in 21Ne is interpreted as consisting of an intrinsic reflection asymmetric (4He+16O)-structure with an additional valence neutron in {sigma}- and {pi}-orbitals. Using the same experimental set-up the emission of the light unbound cluster 8Be has been studied in the reaction 18O+13C{yields}31Si{yields}23Ne+8Be. The emission has been studied relative to the sequential emission of 2{alpha}-particles.

• OSTI ID: 20632993
• Journal Information: AIP Conference Proceedings, Vol. 701, Issue 1; Conference: EPS Nuclear Physics Divisional Conference: International conference on the labyrinth in nuclear structure, Crete (Greece), 13-19 Jul 2003; Other Information: DOI: 10.1063/1.1691724; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASYMMETRY
BERYLLIUM 8
CLUSTER MODEL
DIPOLES
ELECTRIC MOMENTS
GAMMA DECAY
GAMMA RADIATION
GAMMA SPECTRA
HEAVY ION FUSION REACTIONS
HELIUM 4
HIGH SPIN STATES
ION EMISSION
LITHIUM 7
MEV RANGE
NEON 21
NEUTRONS
NUCLEAR STRUCTURE
OCTUPOLES
OXYGEN 16
OXYGEN 18
PARITY
REFLECTION
SCATTERING
SILICON 38
SPIN
VALENCE