A Quasiquantum Model for Calculating Multistep Direct Reactions of Continuum and Discrete Levels

• 来源期刊: 原子核物理：英文版
• 学科: 物理学
• 关键词: QMSD DWBA DISCRETE level
• 年，卷（期）: 1995,（1）
• 页码范围: 52-59
• 页数: 8页
• 分类号: O4

摘要

【正】 A method for calculating multistep direct reactions for both continuum anddiscrete levels is proposed.The energy-angle correction scattering kernel is adopted forcontinuum and discrete levels in the semiclassical approach,in which the angular mo-mentum and parity conservations are considered.The Legendre coefficients of the angu-lar distributions are calculated based on one-step distorted wave Born approximation instead of nucleon-nucleon scattering expressions in nuclear matter.The calculateddiscrete level neutron angular distributions of ¹¹B（p,n₀）¹¹C reaction and the cross sec-tions of¹¹B（p,n₀）¹¹C and ¹¹B（p,n）¹¹C reactions reproduce the experimental data reason-ably.This approach can also be used for composite particle emissions.