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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Initial and final state radiation ： ウィキペディア英語版 Initial and final state radiation In particle physics, initial and final state radiation refers to certain kinds of radiative emissions that are not to due particle annihilation.〔(Radiative Corrections ), Peter Schnatz. Accessed 08 March 2013.〕〔(Reducing the Uncertainty in the Detection Efficiency for Π0 Particles at BABAR ), Kim Alwyn. Accessed 08 March 2013.〕 It is important in experimental and theoretical studies of interactions at particle colliders. ==Explanation of initial and final states== Particle accelerators and colliders produce collisions (interactions) of particles (like the electron or the proton). In the terminloogy of the quantum state, the colliding particles form the ''Initial State''. In the collision, particles can be annihilated or/and exchanged producing possibly different sets of particles, the ''Final States''. The Initial and Final States of the interaction relate through the so-called scattering matrix (S-matrix). The probability amplitude for a transition of a quantum system from the initial state having state vector $|i\backslash rangle$ to the final state vector $|f\backslash rangle$ is given by the scattering matrix element :$S\_=\backslash langle\; f|S|i\backslash rangle\backslash ;,$ where $S$ is the S-matrix. °′→→ἭΥΥἇἇή 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Initial and final state radiation」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.