Moderation of Negative Mesons in Hydrogen I: Moderation from High Energies to Capture by an H$sub 2$ Molecule
Moderation of Negative Mesons in Hydrogen I: Moderation from High Energies to Capture by an H$sub 2$ Molecule
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氢中负介子的调节 I：从高能调节到被 H$sub 2$ 分子捕获
DOI：
10.1103/physrev.77.521
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发表时间：
1950
期刊：
影响因子：
--
通讯作者：
A. Wightman
中科院分区：
文献类型：
--
作者：
A. Wightman
本文描述了负μ介子和负π介子以及质量为1000 m和1837 m的假想负粒子在氢慢化剂和介子能量范围为10 Mev→ 0 ev（被H2分子俘获）时的慢化。在这个能量范围内，介子有三种主要的能量损失模式：1。高能电离损耗，可用普通阻止本领理论描述。2.核碰撞造成的能量损失。3.氢特有的非绝热过程引起的低能电离损失。根据对这三个过程的概率估计，计算了液态氢中介子从10 Mev到被H2分子捕获的慢化时间：
The moderation of negative μ-and π-mesons, as well as of hypothetical negative particles of mass 1000 m and 1837 m is described for a hydrogen moderator and a meson energy range: 10 Mev→ 0 ev (capture by an H 2 molecule). In this energy range, there are three principal modes of energy loss by the mesons: 1. High energy ionization loss, describable by the ordinary stopping power theory. 2. Energy loss due to nuclear collisions. 3. Low energy ionization loss caused by non-adiabatic processes special to hydrogen. From estimates of the probability of these three processes, the moderation times of a meson in liquid hydrogen from 10 Mev to capture by an H 2 molecule are calculated: