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Institute of Theoretical Physics |
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Chinese Academy of Sciences |
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State Key Laboratory of Theoretical Physics |
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Seminar |
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Title
题目 |
Statistical theory of light nucleus reaction and applications to n+9Be and p+9Be reactions |
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Speaker
报告人 |
Prof. Xiao-Jun Sun (孙小军教授) |
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Affiliation
所在单位 |
Guangxi Normal University (广西师范大学) |
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Date
日期 |
15:30, Jul 21 (Tuesday), 2015 |
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Venue
地点 |
Conference Hall 322, ITP/理论物理所322报告厅 |
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Abstract
摘要 |
A new statistical theory of light nucleus reaction (STLN) is proposed to calculate the double-differential cross sections of the reaction productions for light particle induced nuclear reactions with 1p-shell light nuclei involved. The dynamic of STLN is described by the unified Hauser-Feshbach and exciton model, of which the angular momentum and parity conservations are considered in reaction processes for both equilibrium and pre-equilibrium mechanisms. In the kinematics, the recoiling effects in various emission processes are taken into account strictly. The calculated double-differential neutron-production cross sections agree very well with the experimental data, and are recommended as the data of file-6 in the reaction data library CENDL. In addition, a new integral formula is proposed to give analytical energy-angular spectra of particles that are sequentially emitted from the discrete energy levels of the residual nuclei. This integral formula is also helpful to largely reduce the size of file-6 in nuclear reaction databases. |
