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

这个为期两年的奖项支持美国和法国在实验物理化学方面的合作研究，其中包括普渡大学的Edward R. Grant和巴黎南大学的Helene Lefebvre-Brion和Christian Jungen。本研究的目的是将激光光谱学的实验与解释理论和计算相结合。普渡大学的研究小组将集中精力进行实验，以产生与自电离有关的高激发多原子分子的无辐射衰变过程的旋转状态数据。巴黎小组发展了一种理论，描述了这些实验背后的相关分子光电离过程。这一合作的初步结果激发了关于电子角动量和旋转角动量耦合极限的理论活动。初步的理论结果为多原子分子中阳离子-电子散射动力学的研究提供了原型。格兰特博士为这次合作带来了他作为光谱学家和动力学家的专业知识。法国研究人员在现代分子光谱学方面的理论专长，特别是多通道量子缺陷理论，为理解分子内动力学提供了一个通用的框架。

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.