Strong enhancement of dynamical emission of heavy fragments in the neutron-rich {sup 124}Sn+{sup 64}Ni reaction at 35A MeV

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.064605· OSTI ID:21388609

Russotto, P; Amorini, F; Cavallaro, S; Di Toro, M; Giustolisi, F; Porto, F; Rizzo, F ^[1]; De Filippo, E; Pagano, A; Cardella, G; Lanzano, G; Papa, M; Pirrone, S ^[2]; Piasecki, E ^[3]; Anzalone, A; Colonna, M; Maiolino, C ^[1]; Auditore, L; Trifiro, A; Trimarchi, M ^[4]

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1. INFN, Laboratori Nazionali del Sud, Catania (Italy)
2. INFN, Sezione di Catania, Catania (Italy)
3. Heavy Ion Laboratory, University of Warsaw, Warsaw (Poland)
4. INFN, Gruppo Collegato di Messina and Dipartimento di Fisica, University of Messina, Messina (Italy)

A quantitative comparison is made between the absolute cross sections associated with statistical and dynamical emission of heavy fragments in the {sup 124}Sn+{sup 64}Ni and {sup 112}Sn+{sup 58}Ni collisions experimentally investigated at 35A MeV beam energy using the multidetector CHIMERA. The result shows that the dynamical process is about twice as probable in the neutron-rich {sup 124}Sn+{sup 64}Ni system as in the {sup 112}Sn+{sup 58}Ni neutron-poor one. This unexpected and significant difference indicates that the reaction mechanism is strongly dependent on the entrance-channel isospin (N/Z) content.

• OSTI ID: 21388609
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevC.81.064605; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BEAMS
COLLISIONS
COMPARATIVE EVALUATIONS
CROSS SECTIONS
EMISSION
ISOSPIN
MEV RANGE 10-100
NEUTRON-RICH ISOTOPES
NEUTRONS
NICKEL 58
NICKEL 64
NUCLEAR FRAGMENTS
REACTION KINETICS
TIN 112
TIN 124
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY RANGE
EVALUATION
EVEN-EVEN NUCLEI
FERMIONS
HADRONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
KINETICS
MEV RANGE
NICKEL ISOTOPES
NUCLEI
NUCLEONS
PARTICLE PROPERTIES
RADIOISOTOPES
STABLE ISOTOPES
TIN ISOTOPES