Binary reaction decays from {sup 24}Mg+{sup 12}C

Journal Article · Tue Sep 15 00:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.034604· OSTI ID:21293841

Beck, C; Papka, P; Zafra, A Sanchez i; Azaiez, F; Bednarczyk, P; Courtin, S; Curien, D; Dorvaux, O; Lebhertz, D; Nourreddine, A; Rousseau, M ^[1]; Thummerer, S ^[1]; Oertzen, W von; Gebauer, B; Wheldon, C; Kokalova, Tz ^[2]; Angelis, G de; Gadea, A; Lenzi, S; Szilner, S ^[3]

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1. Institut Pluridisciplinaire Hubert Curien, Departement de Recherches Subatomiques, UMR7178, IN2P3-CNRS and Universite de Strasbourg, 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)

Charged-particle and {gamma} decays in {sup 24}Mg* are investigated for excitation energies where quasimolecular resonances appear in {sup 12}C+{sup 12}C collisions. Various theoretical predictions for the occurrence of superdeformed and hyperdeformed bands associated with resonance structures with low spin are discussed within the measured {sup 24}Mg* excitation energy region. The inverse kinematics reaction {sup 24}Mg+{sup 12}C is studied at E{sub lab}({sup 24}Mg)=130 MeV, an energy that enables the population of {sup 24}Mg states decaying into {sup 12}C+{sup 12}C resonant breakup states. 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 {gamma} decays studied. Coincident events associated with inelastic and {alpha}-transfer channels have been 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 {sup 24}Mg-{gamma}, {sup 20}Ne-{gamma}, and {sup 16}O-{gamma} coincidences. New information (spin and branching ratios) is deduced on high-energy states in {sup 24}Mg and {sup 16}O, respectively.

• OSTI ID: 21293841
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 80, Issue 3; Other Information: DOI: 10.1103/PhysRevC.80.034604; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ATOM-ATOM COLLISIONS
BRANCHING RATIO
CARBON 12
CHARGED PARTICLES
COINCIDENCE METHODS
COLLISIONS
DEFORMED NUCLEI
EXCITATION
FORECASTING
GAMMA DECAY
MAGNESIUM 24
MEV RANGE 100-1000
NEON 20
NUCLEAR REACTIONS
OXYGEN 16
RESONANCE
SPECTROMETERS
SPIN
SUPERDEFORMED NUCLEI
TWO-BODY PROBLEM