Nuclear Spin-Dependent Parity Nonconservation in Molecules

分子中核自旋相关的宇称不守恒

• 批准号: 0758045
• 负责人: David DeMille
• 金额: $ 39万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0758045&HistoricalAwards=false
• 关键词: Nuclear; Spin; Dependent; Parity; Nonconservation

This project is a continuation of an ongoing experiment to measure the strength of certain types of electroweak interactions. The electroweak force (one of the fundamental forces in nature) gives rise to an intrinsic energy difference between right- and left-handed configurations of particles and electromagnetic fields. Here, molecules are used in a novel scheme to amplify this (usually tiny) effect by many orders of magnitude. This should make it possible to measure as-yet unseen features of the electroweak force, in particular how it is modified by the presence of strong forces inside an atomic nucleus.This work involves extensive student training. Two current PhD students will complete their theses on the project, and another will be sought. Five undergraduates have participated to date, and a similar continued level of undergraduate involvement is anticipated. In addition, this project will continue to provide significant collaborative effort, including: participation of (at least) two faculty members from nearby small colleges, where on-campus research is not feasible; cross-disciplinary collaborations with chemists; and work with theorists in both Russia and the U.S.

该项目是正在进行的测量某些类型的电弱相互作用强度的实验的延续。电弱力（自然界中的基本力之一）引起粒子和电磁场的右手和左手配置之间的固有能量差。在这里，分子被用于一种新的方案，以放大这种（通常很小的）效应许多数量级。这将使测量电弱力的未知特征成为可能，特别是它是如何被原子核内存在的强作用力所改变的。这项工作需要大量的学生培训。两名目前的博士生将完成他们的论文的项目，另一个将寻求。到目前为止，已有五名本科生参加，预计还会有类似的本科生继续参与。此外，该项目将继续提供重要的合作努力，包括：来自附近小型学院的（至少）两名教师的参与，在那里校园内的研究是不可行的;与化学家的跨学科合作;并与俄罗斯和美国的理论家合作。