Angular Anisotropy of the Fission Fragments in the Dinuclear System Model

T. M. Shneidman; A. V. Andreev; C. Massimi; M. T. Pigni; G. Vannini; A. Ventura; S. G. Zhou

doi:10.11804/NuclPhysRev.32.02.175

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Volume 32 Issue 2

Jun. 2015

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Article Navigation > Nuclear Physics Review > 2015 > 32(2): 175-179

T. M. Shneidman, A. V. Andreev, C. Massimi, M. T. Pigni, G. Vannini, A. Ventura, S. G. Zhou. Angular Anisotropy of the Fission Fragments in the Dinuclear System Model[J]. Nuclear Physics Review, 2015, 32(2): 175-179. doi: 10.11804/NuclPhysRev.32.02.175

Citation:

T. M. Shneidman, A. V. Andreev, C. Massimi, M. T. Pigni, G. Vannini, A. Ventura, S. G. Zhou. Angular Anisotropy of the Fission Fragments in the Dinuclear System Model[J]. Nuclear Physics Review, 2015, 32(2): 175-179. doi: 10.11804/NuclPhysRev.32.02.175

Angular Anisotropy of the Fission Fragments in the Dinuclear System Model

doi: 10.11804/NuclPhysRev.32.02.175

Joint Institute for Nuclear Research, Dubna 141980, Russia;
Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China;
Kazan Federal University, Kazan 420008, Russia;
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Bologna, 40126, Italy;
Dipartimento di Fisica dell Universita di Bologna, Bologna, 40126, Italy;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-06-20

Abstract

A theoretical evaluation of the collective excitation spectra of nucleus at large deformations is possible within the framework of the dinuclear system (DNS) model, which treats the wave function of the fissioning nucleus as a superposition of a mononucleus configuration and two-cluster configurations in a dynamical way, permitting exchange of nucleons between clusters. In this work the method of calculation of the potential energy and the collective spectrum of fissioning nucleus at scission point is presented. Combining the DNS model calculations and the statistical model of fission we calculate the angular distribution of fission fragments for the neutron–induced fission of 239Pu.
- cluster states in nuclei,
- dinuclear system,
- fission angular anisotropy
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Angular Anisotropy of the Fission Fragments in the Dinuclear System Model

doi: 10.11804/NuclPhysRev.32.02.175

Joint Institute for Nuclear Research, Dubna 141980, Russia;

Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China;

Kazan Federal University, Kazan 420008, Russia;

Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Bologna, 40126, Italy;

Dipartimento di Fisica dell Universita di Bologna, Bologna, 40126, Italy;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-06-20

Key words:

Abstract: A theoretical evaluation of the collective excitation spectra of nucleus at large deformations is possible within the framework of the dinuclear system (DNS) model, which treats the wave function of the fissioning nucleus as a superposition of a mononucleus configuration and two-cluster configurations in a dynamical way, permitting exchange of nucleons between clusters. In this work the method of calculation of the potential energy and the collective spectrum of fissioning nucleus at scission point is presented. Combining the DNS model calculations and the statistical model of fission we calculate the angular distribution of fission fragments for the neutron–induced fission of 239Pu.

Citation: