On the energy dependence of annihilation cross-sections for positrons in collision with atoms and molecules

Van Reeth P; Laricchia G; Humberston JW

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On the energy dependence of annihilation cross-sections for positrons in collision with atoms and molecules

机译：正电子与原子和分子碰撞时an没截面的能量依赖性

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The very large annihilation rates observed at room temperature in positron collisions with certain molecules have instigated the development of several models of positron annihilation based on the role of virtual processes, Feshbach resonances and bound states. One of the outcomes of these models has been the interest they have generated in investigations of the energy dependence of the annihilation cross-section in the vicinity of inelastic thresholds. The aim of this article is to provide a review of these recent studies and to highlight outstanding questions.

机译：在室温下观察到的与某些分子发生正电子an灭的非常大的an灭率，基于虚拟过程，Feshbach共振和束缚态的作用，促进了几种正电子an灭的模型的发展。这些模型的结果之一是，它们在研究非弹性阈值附近的an没截面的能量依赖性时产生了兴趣。本文的目的是提供对这些最新研究的回顾，并突出突出的问题。

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《Physica Scripta: An International Journal for Experimental and Theoretical Physics》 |2005年第4期|共5页
作者
Van Reeth P; Laricchia G; Humberston JW;
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原文格式 PDF
正文语种 eng
中图分类物理学;
关键词
SCATTERING; STATES; THRESHOLD; HYDROGEN; SOLIDS; GASES;

机译：散射;状态;阈值;氢;固体;气体;

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专利

1. On the energy dependence of annihilation cross-sections for positrons in collision with atoms and molecules [J] . Van Reeth P, Laricchia G, Humberston JW Physica Scripta: An International Journal for Experimental and Theoretical Physics . 2005,第4期

机译：正电子与原子和分子碰撞时an没截面的能量依赖性
2. The energy dependence of the annihilation rate in positron-atom scattering [J] . Van Reeth P., Humberston JW. Journal of Physics, B. Atomic, Molecular and Optical Physics: An Institute of Physics Journal . 1998,第5期

机译：正电子原子散射中the灭率的能量依赖性
3. The energy dependence of the annihilation rate in positron-atom scattering [J] . Van Reeth P., Humberston JW. Journal of Physics, B. Atomic, Molecular and Optical Physics: An Institute of Physics Journal . 1998,第5期

机译：正电子原子散射中the灭率的能量依赖性
4. Low-energy Positron Scattering on Atoms and Molecules [C] . G. Karwasz, D. Pliszka, A. Zecca Atomic and Molecular Physics . 2004

机译：低能正电子在原子和分子上的散射
5. Positron annihilation on atoms and molecules. [D] . Iwata, Koji. 1997

机译：正电子an灭原子和分子。
6. Study of Dependence of Kinetic Freezeout Temperature on the Production Cross-Section of Particles in Various Centrality Intervals in Au–Au and Pb–Pb Collisions at High Energies [O] . Muhammad Waqas, Guang-Xiong Peng 2021

机译：高能量在Au-Au和Pb-Pb碰撞中各种中心间隔中粒子生产横截面术的依赖性研究
7. ELECTRONIC EXCITATION OF K ATOMS IN COLLISIONS WITH DIATOMIC MOLECULES: THRESHOLDS AND ENERGY DEPENDENCE FROM 1-5 eV [O] . Kempter V., Mecklenbrauck W., Merzenich M., 1970

机译：与来自为1.5eV双原子分子的阈值和能量依赖的碰撞ķ原子的电子激发
8. Influence of Collision Cross-Sections for Electrons, Atoms and Molecules on Rocket Exhausts and Metastable Propellants [R] . Michels, H. H. 1971

机译：电子，原子和分子碰撞截面对火箭排气和亚稳推进剂的影响

On the energy dependence of annihilation cross-sections for positrons in collision with atoms and molecules

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