Microscopic description of nuclear fission dynamics

被引：16

作者：

Umar, A. S. ^{[1
]}

Oberacker, V. E. ^{[1
]}

Maruhn, J. A. ^{[2
]}

Reinhard, P-G ^{[3
]}

机构：

[1] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

[2] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany

[3] Univ Erlangen Nurnberg, Inst Theoret Phys, D-91054 Erlangen, Germany

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2010年 / 37卷 / 06期

关键词：

MUON-INDUCED FISSION; HARTREE-FOCK CALCULATIONS; NEUTRON EMISSION; DENSITY; ENERGY; PROBE; TDHF;

D O I：

10.1088/0954-3899/37/6/064037

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We discuss possible avenues to study fission dynamics starting from a time-dependent mean-field approach. Previous attempts to study fission dynamics using the time-dependent Hartree-Fock (TDHF) theory are analyzed. We argue that different initial conditions may be needed to describe fission dynamics depending on the specifics of the fission phenomenon and propose various approaches toward this goal. In particular, we provide preliminary calculations for studying fission following a heavy-ion reaction using TDHF with a density constraint. Regarding prompt muon-induced fission, we also suggest a new approach for combining the time evolution of the muonic wavefunction with a microscopic treatment of fission dynamics via TDHF.

引用

页数：7

共 30 条

[1] DENSITY AS A CONSTRAINT AND THE SEPARATION OF INTERNAL EXCITATION-ENERGY IN TDHF [J].

CUSSON, RY ;

REINHARD, PG ;

STRAYER, MR ;

MARUHN, JA ;

GREINER, W .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1985, 320 (03) :475-482

[2] EFFECT OF VISCOSITY ON DYNAMICS OF FISSION [J].

DAVIES, KTR ;

SIERK, AJ ;

NIX, JR .

PHYSICAL REVIEW C, 1976, 13 (06) :2385-2403

[3] FUSION BEHAVIOR IN TIME-DEPENDENT HARTREE-FOCK CALCULATIONS OF KR-86 + LA-139 AND KR-84 + BI-209 COLLISIONS [J].

DAVIES, KTR ;

DEVI, KRS ;

STRAYER, MR .

PHYSICAL REVIEW C, 1981, 24 (06) :2576-2592

[4] FISSION OF A SLAB OF CHARGED NUCLEAR-MATTER IN THE TIME-DEPENDENT HARTREE-FOCK (TDHF) THEORY [J].

DIETRICH, K ;

NEMETH, J .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1981, 300 (2-3) :183-192

[5] Structure properties of 226Th and 256,258,260Fm fission fragments:: Mean-field analysis with the Gogny force [J].

Dubray, N. ;

Goutte, H. ;

Delaroche, J. -P. .

PHYSICAL REVIEW C, 2008, 77 (01)

[6] NEUTRON EMISSION IN THE FISSIONING ER-158 COMPOSITE SYSTEM [J].

GAVRON, A ;

GAYER, A ;

BOISSEVAIN, J ;

BRITT, HC ;

AWES, TC ;

BEENE, JR ;

CHEYNIS, B ;

DRAIN, D ;

FERGUSON, RL ;

OBENSHAIN, FE ;

PLASIL, F ;

YOUNG, GR ;

PETITT, GA ;

BUTLER, C .

PHYSICAL REVIEW C, 1987, 35 (02) :579-590

[7] 3-DIMENSIONAL NUCLEAR-DYNAMICS IN THE QUANTIZED ATDHF APPROACH [J].

GOEKE, K ;

GRUMMER, F ;

REINHARD, PG .

ANNALS OF PHYSICS, 1983, 150 (02) :504-551

[8] ADIABATICITY IN THE PATH-INTEGRAL APPROACH TO NUCLEAR LARGE-AMPLITUDE VIBRATIONS [J].

GOEKE, K ;

REINHARD, PG ;

REINHARDT, H .

NUCLEAR PHYSICS A, 1982, 378 (03) :474-502

[9]

GOUTTE H, 2008, PHYS REV C, V71

[10] APPROACHES TO NUCLEAR FRICTION [J].

HASSE, RW .

REPORTS ON PROGRESS IN PHYSICS, 1978, 41 (07) :1027-1101

← 1 2 3 →