An Approach to the Unified Theory of Nuclear Reactions
スポンサーリンク
概要
- 論文の詳細を見る
In the unified theory of nuclear reactions, an attempt is made to classify effectively a nuclear reaction into a simple mechanism process and a compound nucleus process. The method of classification is based on the number of target nucleons which interact directly with the incident particle on the way of the reaction. The simple mechanism states include both the scattering states and the doorway states which couple strongly to the open channels. The compound nucleus states are defined independently of the open channels. This is one of the main purposes of this paper. Different pairs of projection operators are introduced through the following two stages:In the first stage, operators P and Q are introduced in order to decompose the eigenstates of the system into the compound nucleus states and the simple mechanism states. In the second stage, operators p_c and q_c are used in order to approximate the simple mechanism states by the states of the early or last stage of the reaction A(a, b)B. Through the above two stages, the exact transition amplitude for this reaction is rewritten into a form of the unified description. Explicit forms of the projection operators are always given in the case not only of scattering but also of reactions. The method can be applied effectively to kinds of exchange reactions at low energies.
- 理論物理学刊行会の論文
- 1972-02-25
著者
-
Kitazoe Yasuhiro
Department Of Nuclear Engineering Osaka University
-
SEKIYA Tamotsu
Department of Nuclear Engineering, Osaka University
-
Sekiya Tamotsu
Department Of Nuclear Engineering Osaka University
-
KITAZOE Yasuhiro
Department of Nuclear Engineering, Osaka University
関連論文
- An Approach to the Unified Theory of Nuclear Reactions
- Formation and Disintegration of High-Density Nuclear Matter in Heavy-Ion Collisions : Nonrelativistic Approximation
- Effect of Pion Condensation on Angular Distributions in High Energy Heavy-Ion Collisions
- Cascade-Model Analysis of Pion Production in Relativistic Nuclear Collisions : Nuclear Physics
- On the Formation of N* Particles in High Energy Heavy-Ion Collisions
- The Second Spatial Moment of Neutron Distribution in Hydrogenous Moderators Containing Voids
- An Approximate Scattering Kernel for Neutron Slowing Down
- Effective Parameter Method in Space-Dependent Neutron Slowing Down Problem
- Effective Parameter Method in Time-Dependent Neutron Slowing Down Problem
- Determination of effective diffusion parameters in thermal reactor assemblies.
- Hidden state-variables and a non-Markoffian formulation of reactor noise.
- Irreversible circulation of fluctuation in reactor noise.
- Reactor Noise Theory based on System Size Expansion
- Comparison of Disadvantage Factor among Square, Hexagonal and Cylindrical Cells
- A Stochastic Operator Method of Calculating the Time Interval Distributions in Neutron Detection
- The Effect of Cylindrical Holes in a Moderator on the Passage of Virgin Neutrons from a Point Source
- Preliminary Calculation for Experiments Using Osaka University HITS, (I):Time-Dependent Thermal Neutron Angular Flux from a Pulsed Exponential Assembly Calculated in P3-Approximation of the Transport Equation