Dynamical dipole mode in fusion reactions

Journal Article · Mon May 04 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3141683· OSTI ID:21304808

Pierroutsakou, D; Boiano, A; Romoli, M ^[1]; Martin, B; Inglima, G; La Commara, M; Sandoli, M ^[1]; Agodi, C; Alba, R; Coniglione, R; Zoppo, A Del; Maiolino, C; Piattelli, P; Santonocito, D; Sapienza, P ^[2]; Baran, V; Glodariu, T ^[3]; Cardella, G; De Filippo, E; Pagano, A ^[4]

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1. INFN, Sezione di Napoli, Napoli (Italy)
2. INFN-Laboratori Nazionali del Sud, Catania (Italy)
3. NIPNE-HH and Bucarest University (Romania)
4. INFN, Sezione di Catania, Catania (Italy)

We investigated the dynamical dipole mode, related with entrance channel charge asymmetry effects, in the {sup 40}Ar+{sup 92}Zr and {sup 36}Ar+{sup 96}Zr fusion reactions at E{sub lab} = 15.1 A and 16 A MeV, respectively. These reactions populate, through entrance channels having different charge asymmetries, a compound nucleus in the A = 126 mass energy region, identical spin distribution at an average excitation energy of about 280 MeV. The compound nucleus average excitation energy and average mass were deduced by the analysis of the light charged particle energy spectra. By studying the {gamma}-ray energy spectra and the {gamma}-ray angular distributions of the considered reactions, the dynamical nature of the prompt radiation related to the dynamical dipole mode was evidenced. The data are compared with calculations based on a collective bremsstrahlung analysis of the reaction dynamics.

• OSTI ID: 21304808
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1120; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ARGON 36 REACTIONS
ARGON 40 REACTIONS
ASYMMETRY
BREMSSTRAHLUNG
COMPOUND NUCLEI
DIPOLES
ELECTRIC MOMENTS
ENERGY SPECTRA
EXCITATION
GAMMA RADIATION
GIANT RESONANCE
HEAVY ION FUSION REACTIONS
MEV RANGE
SPIN
VISIBLE RADIATION
ZIRCONIUM 92 TARGET
ZIRCONIUM 96 TARGET