EPJ Web of Conferences
Volume 122, 2016CNR*15 - 5th International Workshop on Compound-Nuclear Reactions and Related Topics
|Number of page(s)||8|
|Published online||21 June 2016|
Stochastic estimation of level density in nuclear shell-model calculations
1 Center for Nuclear Study, the University of Tokyo, Hongo Tokyo 113-0033, Japan
2 Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
3 Faculty of Engineering, Information and Systems, University of Tsukuba, Tsukuba, 305-8573, Japan
4 CREST, Japan Science and Technology Agency, Kawaguchi, 332-0012 Japan
5 Institute of Natural Sciences, Senshu University, Tokyo 101-8425 Japan
6 Department of Physics, the University of Tokyo, Hongo Tokyo 113-0033 Japan
7 National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824 USA
8 Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium
a e-mail: email@example.com
Published online: 21 June 2016
An estimation method of the nuclear level density stochastically based on nuclear shell-model calculations is introduced. In order to count the number of the eigen-values of the shell-model Hamiltonian matrix, we perform the contour integral of the matrix element of a resolvent. The shifted block Krylov subspace method enables us its efficient computation. Utilizing this method, the contamination of center-of-mass motion is clearly removed.
© The Authors, published by EDP Sciences, 2016
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