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.

该项目是一个正在进行的实验的延续，以测量某些类型的Electroweak相互作用的强度。电动作用力（自然界中的基本力之一）导致颗粒和电磁场的右手和左手配置之间的内在能量差。在这里，分子在新的方案中使用，以通过许多数量级扩大（通常很小）的效果。这应该使得可以测量电动作用力的尚未看到的特征，尤其是如何通过原子核内部存在强力来修改它。这项工作涉及广泛的学生培训。目前的两名博士生将完成该项目的论文，并寻求另一个。迄今为止，有五名大学生参加了会议，预计本科生的持续水平类似。此外，该项目将继续提供重大的合作努力，包括：参与附近小大学的两名教职员工，那里的校园内研究不可行；与化学家的跨学科合作；并与俄罗斯和美国的理论家合作