Formation of hyperdeformed states by neutron emission from a dinuclear system

Journal Article · Mon Feb 15 00:00:00 EST 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.024607· OSTI ID:21388871

Zubov, A S; Antonenko, N V ^[1]; Sargsyan, V V ^[1]; Adamian, G G ^[1]; Scheid, W ^[2]

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1. Joint Institute for Nuclear Research, RU-141980 Dubna (Russian Federation)
2. Institut fuer Theoretische Physik der Justus-Liebig-Universitaet, D-35392 Giessen (Germany)

The hyperdeformed nuclei treated as dinuclear or quasimolecular configurations are suggested to be directly produced in heavy-ion reactions at bombarding energies near the Coulomb barrier. The excited dinuclear system formed in the entrance channel of the heavy-ion collision can be cooled down by neutron emission to be transformed into the hyperdeformed nuclear system. This transition from the excited dinuclear system to a hyperdeformed configuration is described within the statistical approach. The reactions {sup 48}Ca+{sup 124,128,130,132,134}Sn, {sup 48}Ca+{sup 136,138}Xe, {sup 48}Ca+{sup 137,138,140}Ba, {sup 40}Ca+{sup 83,84}Kr, {sup 48}Ca+{sup 83,84,86}Kr, {sup 40,48}Ca+{sup 40,48}Ca, {sup 58,60}Ni+{sup 58,60}Ni, and {sup 40}Ca+{sup 58}Ni are suggested for the population of hyperdeformed states. The production cross sections, quadrupole moments, and moments of inertia of hyperdeformed states formed in these reactions are calculated, and the optimal conditions for the experimental identification of such states are proposed.

• OSTI ID: 21388871
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 2; Other Information: DOI: 10.1103/PhysRevC.81.024607; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARIUM 137
BARIUM 138
BARIUM 140
CALCIUM 40
CALCIUM 48
COMPUTERIZED SIMULATION
CONFIGURATION
COULOMB FIELD
CROSS SECTIONS
HEAVY ION REACTIONS
KRYPTON 83
KRYPTON 84
KRYPTON 86
MOMENT OF INERTIA
NEUTRON EMISSION
NICKEL 58
NICKEL 60
NUCLEAR DEFORMATION
NUCLEAR REACTIONS
QUADRUPOLE MOMENTS
STATISTICAL MODELS
TIN 124
TIN 128
TIN 130
TIN 132
TIN 134
XENON 136
XENON 138
ALKALINE EARTH ISOTOPES
BARIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCIUM ISOTOPES
DAYS LIVING RADIOISOTOPES
DEFORMATION
ELECTRIC FIELDS
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EVEN-EVEN NUCLEI
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HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KRYPTON ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MICROSECONDS LIVING RADIOISOTOPES
MINUTES LIVING RADIOISOTOPES
NANOSECONDS LIVING RADIOISOTOPES
NICKEL ISOTOPES
NUCLEI
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SIMULATION
STABLE ISOTOPES
TIN ISOTOPES
XENON ISOTOPES