Resonance Energies and Widths from the Poles of the Multichannel T Matrix (Physics)

多通道 T 矩阵极点的共振能量和宽度（物理）

• 批准号: 8706035
• 负责人: Deborah Watson
• 金额: $ 6.55万
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-09-01 至 1992-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8706035&HistoricalAwards=false
• 关键词: Resonance; Energies; Widths; Poles; Multichannel

This project involves the theoretical and numerical development of a new method of calculating resonance energies and widths, together with the application of the method to atomic resonances. The resonance parameters, including partial widths and resonance channel wave functions, are determined by searching the complex momentum plane for the poles of the multichannel Schwinger T matrix. Steps in the project include (1) implementation of a multichannel iteration procedure, (2) development of multichannel Green's functions stable in all complex energy regions, (3) study of the numerical behavior of the Schwinger T matrix denominator in the complex energy plane and (4) characterization of higher atomic resonances. Applications will be made to the resonance states of beryllium, helium and H-.

该项目涉及的理论和数值 发展了一种计算共振能量的新方法， 宽度，以及该方法在原子 共振 共振参数，包括部分宽度 和共振通道波函数，通过搜索 多通道极点的复动量平面 Schwinger T矩阵 该项目的步骤包括（1） 实现多通道迭代过程，（2） 多渠道绿色功能开发全面稳定 复杂能量区域的数值行为研究; 复能量平面上的Schwinger T矩阵分母 和（4）更高原子共振的表征。 将应用于铍的共振态， 氦和氢。