Actions for Nuclear molecules in TDHF

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Nuclear molecules in TDHF

Author
Strayer, M. R.
Published
United States : [publisher not identified], 1984
Springfield, Va.: National Technical Information Service, [approximately 1984]
Physical Description
microfiche : negative ; 11 x 15 cm

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Summary
The quasiperiodic motion in /sup 24/Mg, which experimentally displays a type of molecular structure is studied using the time-dependent Hartree-Fock approximation. The TDHF method addresses the question of molecular formation from a microscopic view which provides both a geometrical (classical) picture of the molecule, as well as characteristic information on the rotational and vibrational structure of the molecule. The most extensive experimental evidence for the existence of nuclear molecules lies in the narrow resonances observed in the /sup 12/C + /sup 12/C reactions near the Coulomb barrier. A large number of experimental data has been amassed, and the most successful organization of these data is in terms of the U(4) model of Iachello. The representation of the data in terms of this model suggests that the molecule involves a structure related to the 7.08 MeV 0/sup +/ state of /sup 12/C. This state has a well-established cluster structure and is approximately given as a HF shape isomer of /sup 12/C. The energy as a function of deformation and the density contours for both the ground state /sup 12/C and the carbon isomer are shown. The present work examines in detail the classical behavior of the /sup 12/C + /sup 12/C(0/sup +/) collision at energies near the Coulomb barrier. The long-time motion of the compound nuclear system is identified in terms of its classical quasiperiodic and chaotic behavior. The consequences of this motion are discussed and interpreted in terms of the evolution of the system along a dynamical energy surface. 21 references.
Report Numbers
DE85001124; CONF-8409149-1
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: AC05-84OR21400
OSTI Identifier 6495262
Research organization: Oak Ridge National Lab., TN (USA).
View MARC record | catkey: 47346421