Studies of heavy ion reactions around Coulomb barrier

Journal Article · Wed May 12 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3442631· OSTI ID:21362050

Zhang, H Q; Jia, H M; Lin, C J; Yang, F; Liu, Z H; Wu, Z D; Jia, F; Xu, X X ^[1]; Zhang, C L ^[1]; Richard, A ^[2]; Nasirov, A K ^[3]; Mandaglio, G; Manganaro, M; Giardina, G ^[4]; Hagino, K ^[5]

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1. China Institute of Atomic Energy, P. O. Box 275(10), Beijing 102413 (China)
2. Universite de Strasbourg (Uds), 67037 Strasbourg (France)
3. Joint Institute of Nuclear Research, 141980 Dubna (Russian Federation)
4. Dipartimento di Fisica dell' Universita di Messina, 98166 Messina, and Istituto Nazionale di Fisica Nucleare Sezione di Catania (Italy)
5. Department of Physics, Tohoku University, Sendai 980-8578 (Japan)

The angular distributions of fission fragments for the {sup 32}S+{sup 184}W reaction near Coulomb barrier energies were measured. The experimental fission excitation function is obtained. The measured fission cross sections are decomposed into fusion-fission, quasifission and fast fission contributions by the dinuclear system model. The hindrance to complete fusion both at small and large collision energies is explained. The fusion excitation functions of {sup 32}S+{sup 90,96}Zr in an energy range from above to below Coulomb barrier were measured and analyzed. The obvious effect of positive Q-value neutron transfers has been observed in the {sup 32}S+{sup 96}Zr system. In addition, the excitation functions of quasielastic scattering at a backward angle have been measured for the systems of {sup 16}O+{sup 208}Pb, {sup 196}Pt, {sup 184}W, and {sup 154,152}Sm at energies well below the Coulomb barrier. Considering the coupling effects, the extracted diffuseness parameters are close to the values extracted from the systematic analysis of elastic and inelastic scattering data.

• OSTI ID: 21362050
• Journal Information: AIP Conference Proceedings, Vol. 1235, Issue 1; Conference: 7. Japan-China joint nuclear physics symposium, Tsukuba (Japan), 9-13 Nov 2009; Other Information: DOI: 10.1063/1.3442631; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
COLLIDING BEAMS
COULOMB FIELD
EXCITATION FUNCTIONS
FAST FISSION
FISSION FRAGMENTS
FISSION NEUTRONS
HEAVY ION FUSION REACTIONS
INELASTIC SCATTERING
LEAD 208
LEAD 208 TARGET
NEUTRON TRANSFER
NEUTRON TRANSPORT THEORY
OXYGEN 16
OXYGEN 16 BEAMS
OXYGEN 16 REACTIONS
PLATINUM 196
PLATINUM 196 TARGET
POTENTIAL ENERGY
QUASI-ELASTIC SCATTERING
QUASI-FISSION
Q-VALUE
SAMARIUM 152
SAMARIUM 152 TARGET
SAMARIUM 154
SAMARIUM 154 TARGET
SULFUR 32
SULFUR 32 BEAMS
SULFUR 32 REACTIONS
TUNGSTEN 184
TUNGSTEN 184 TARGET
ZIRCONIUM 90
ZIRCONIUM 90 TARGET
ZIRCONIUM 96
ZIRCONIUM 96 TARGET
BARYON REACTIONS
BARYONS
BEAMS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DIRECT REACTIONS
DISTRIBUTION
ELECTRIC FIELDS
ELEMENTARY PARTICLES
ENERGY
EVEN-EVEN NUCLEI
FERMIONS
FISSION
FUNCTIONS
HADRON REACTIONS
HADRONS
HEAVY ION REACTIONS
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
ION BEAMS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD ISOTOPES
LIGHT NUCLEI
MILLISECONDS LIVING RADIOISOTOPES
NEUTRON REACTIONS
NEUTRONS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
NUCLEOSYNTHESIS
OXYGEN ISOTOPES
PLATINUM ISOTOPES
QUASI-FREE REACTIONS
RADIOISOTOPES
RARE EARTH NUCLEI
SAMARIUM ISOTOPES
SCATTERING
STABLE ISOTOPES
SULFUR ISOTOPES
SYNTHESIS
TARGETS
TRANSPORT THEORY
TUNGSTEN ISOTOPES
ZIRCONIUM ISOTOPES