U.S.-France Cooperative Research: Autoionization in Diatomic and Polyatomic Molecules: Experiment and Theory

这一为期两年的奖项支持美法在实验物理化学方面的合作研究，普渡大学的Edward R.Grant和巴黎南大的Helene Lefebvre-Brion和Christian Jungen参与了这项研究。这项研究的目的是将激光光谱学中的实验与解释性的理论和计算工作结合起来。普渡大学的研究小组将专注于产生与自电离相关的高激发多原子分子中无辐射衰减过程的旋转态数据的实验。巴黎小组发展了描述这些实验背后的相关分子光致电离过程的理论。这次合作的初步结果刺激了关于电子角动量和转动角动量耦合极限的理论活动。初步的理论结果为研究多原子分子中的阳离子-电子散射动力学提供了原型。格兰特博士将他作为光谱学家和动态学家的专长带到了这次合作中。这与法国研究人员在现代分子光谱学方面的理论专业知识相辅相成，特别是多通道量子缺陷理论，它为理解分子内动力学提供了一个通用框架。

This two-year award supports U.S.-France cooperative research in experimental physical chemistry involving Edward R. Grant of Purdue University and Helene Lefebvre-Brion and Christian Jungen of the University of Paris-Sud. The objective of this research is to integrate experiments with interpretive theoretical and computational efforts in laser spectroscopy. The Purdue research group will concentrate on experiments for producing rotational state data on radiationless decay processes in highly excited polyatomic molecules related to autoionization. The Paris group has developed the theory which describes the relevant molecular photoionization processes underlying these experiments. Preliminary results of this collaboration have stimulated theoretical activity on the coupling limit of electronic and rotational angular momentum. And initial theoretical results have suggest prototypes for study of cation-electronic scattering dynamics in polyatomic molecules. Dr. Grant brings to this collaboration his expertise as a spectroscopist and dynamicist. This is complemented by the theoretical expertise of the French investigators in modern molecular spectroscopy, in particular, the Multichannel Quantum Defect Theory which offers a universal framework for understanding intramolecular dynamics.