Positron annihilation in large polyatomic molecules. The role of vibrational Feshbach resonances and binding
Positron annihilation in large polyatomic molecules. The role of vibrational Feshbach resonances and binding
复制标题
大多原子分子中的正电子湮灭。
DOI：
10.1140/epjd/e2008-00188-9
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
C.M.R. Lee
中科院分区：
文献类型：
--
作者：
G. Gribakin;C.M.R. Lee
我们分析了正电子俘获到振动Feshbach共振的多原子大分子中正电子的快速湮没过程。共振湮没发生在可以结合正电子的分子中，我们用零程电势分析了正电子与烷烃的结合。简要讨论了湮没伽马量子谱和湮没后分子碎裂的有关问题。
We analyse the process of rapid positron annihilation in large polyatomic molecules due to positron capture into vibrational Feshbach resonances. Resonant annihilation occurs in molecules which can bind positrons, and we analyse positron binding to alkanes using zero-range potentials. Related questions of spectra of annihilation gamma quanta and molecular fragmentation following annihilation, are discussed briefly.