U.S.-Hungary Physics Research on N-Body Scattering Theory

美国-匈牙利 N 体散射理论物理研究

• 批准号: 9222354
• 负责人: Colston Chandler
• 金额: $ 3.16万
• 依托单位: University of New Mexico
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-09-01 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9222354&HistoricalAwards=false
• 关键词: U.S.; Hungary; Physics; Research; Body

This US-Hungary research project on "N-Body Scattering Theory" is between Drs. Colston Chandler and Archie G. Gibson of the University of New Mexico and Dr. Gyula Bencze of the Research Institute for Nuclear & Particle Physics, Hungarian Academy of Sciences. The researchers will continue examination of the Coulomb interaction, a difficult, few-body problem in theoretical physics for which no practical, mathematically rigorous theory exists. Work will emphasize code development to evaluate scattering amplitudes numerically for proton- deuteron scattering, treating the Coulomb interaction exactly. The researchers will pursue work on a scattering theory to more accurately account for electron correlations in atomic breakup reactions. Finally, they will study the Coulomb reaction for three particles interacting with repulsive Coulomb interactions to determine how to incorporate into the scattering theory a practical distorted wave approximation for breakup wave functions. The inclusion of breakup channels in scattering calculations is a topic of considerable interest at present in both atomic and nuclear physics. The researchers also intend to continue their theoretical and numerical work on breakup amplitudes in the context of the Chandler-Gibson equations. The specific problem to be addressed is a simplified model for neutron-deuteron scattering, though the techniques should be applicable to more general problems. Study will also be initiated to develop a practical N-body distorted wave approximation for three-cluster breakup wave functions. Success in any of the proposed studies would have considerable practical application in atomic or nuclear physics, or both. This project in theoretical physics fulfills the program objective of advancing scientific knowledge by enabling leading experts in Hungary and the United States to combine complementary talents and pool resources in areas of strong mutual interest and competence.

这个美国和匈牙利合作的“N体”研究项目 散射理论”是科尔斯顿博士 钱德勒和阿奇·G.大学的吉布森 新墨西哥州的Gyula Bencze博士 核粒子研究所 物理学，匈牙利科学院。 的 研究人员将继续研究 库仑相互作用，一个困难的，少体 理论物理学中的一个问题 实际的、数学上严格的理论是存在的。 工作将强调代码开发， 散射振幅数值质子- 氘核散射，库仑处理 互动准确。 研究人员将继续 研究散射理论， 解释原子中的电子关联 分手反应。 最后，他们将研究 三粒子相互作用的库仑反应 用排斥库仑相互作用来确定 如何在散射理论中 实用畸变波近似 破裂波函数 包括分手 散射计算中的通道是 目前对原子能和 和核物理学。 研究人员还打算继续他们的 破裂的理论和数值研究 振幅的上下文中的Muller-Gibson 方程 要解决的具体问题 是中子-氘的简化模型 散射，虽然技术应该是 适用于更一般的问题。 研究将 并着手研制一种实用的N体 三集团扭曲波近似 破裂波函数 在任何一个成功的 建议的研究将有相当大的 原子或核的实际应用 物理学或两者兼而有之。 这个理论物理项目实现了 科学发展规划目标 通过帮助匈牙利的顶尖专家 与美国联合收割机互补 在优势领域集中人才和资源 共同利益和能力。