ALPHA-CLUSTER STATES POPULATED IN 24Mg + 12C

Author:

BECK C.1,SÀNCHEZ I ZAFRA A.1,PAPKA P.1,THUMMERER S.12,AZAIEZ F.1,BEDNARCZYK P.1,COURTIN S.1,CURIEN D.1,DORVAUX O.1,LEBHERTZ D.1,NOURREDDINE A.1,ROBIN J.1,ROUSSEAU M.1,VON OERTZEN W.2,GEBAUER B.2,KOKALOVA TZ.2,WHELDON C.2,DE ANGELIS G.3,GADEA A.3,LENZI S.3,SZILNER S.3,NAPOLI D. R3,CATFORD W. N.4,JENKINS D. G.5,ROYER G.6

Affiliation:

1. Institut Pluridisciplinaire Hubert Curien-Département de Recherches Subatomiques, UMR7178, IN2P3-CNRS et Université Louis Pasteur (Strasbourg I), 23 rue du Loess, B. P. 28, F-67037 Strasbourg Cedex 2, France

2. Hahn-Meitner-Institut, Glienicker Str. 100, D-14109 Berlin, Germany

3. INFN-Lab. Nationali di Legnaro and Dipartimento di Fisica, I-35020 Padova, Italy

4. School of Physics and Chemistry, University of Surrey, Guildford, Surrey, GU2 7XH, UK

5. Department of Physics, University of York, York, YO10 5DD, UK

6. Subatech, IN2P3-CNRS et Université-Ecole des Mines, 4 rue A. Kastler, F-44307 Nantes Cedex 3, France

Abstract

Charged particle and γ-decays in light α-like nuclei are investigated for 24 Mg +12 C . Various theoretical predictions for the occurence of superdeformed and hyperdeformed bands associated with resonance structures with low spin are presented. The inverse kinematics reaction 24 Mg +12 C is studied at E lab(24 Mg ) = 130 MeV . Exclusive data were collected with the Binary Reaction Spectrometer in coincidence with EUROBALL IV installed at the VIVITRON Tandem facility at Strasbourg. Specific structures with large deformation were selectively populated in binary reactions and their associated γ-decays studied. Coincident events from α-transfer channels were selected by choosing the excitation energy or the entry point via the two-body Q -values. The analysis of the binary reaction channels is presented with a particular emphasis on 20 Ne -γ and 16 O -γ coincidences.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Nuclear and High Energy Physics

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