Time Reversal, Neutron Structure and Neutron Beta Decay

将在以下领域开展研究： 原子永久电偶极矩的测量和 基本对称性;极化He-3的电子散射 从中能和高能提取信息 中子结构;中子β衰变实验， 中子半衰期和测量D系数与极化 中子束 今后三年的具体目标是：（1） 氚-129永久电偶极矩的测量 用He-3磁力仪用磁感应检测游离 （2）发展新的精密测量方法 技术的灵敏度要比 磁感应技术及其在电 偶极矩实验和基本思想的检验 包括量子力学中的线性和局部洛伦兹 （3）为了运行SLAC实验E-142，极化 极化He-3的电子散射测量自旋 中子的相关结构函数和检验比约肯 （4）为了进行SLAC实验E-143，极化电子 从极化的H1和H2散射作为程序的一部分开始 （5）在贝茨进行实验88-25（含） 极化电子的准弹性散射 （6）设计一个实验，继续包容性和 CEBAF的独家准弹性散射测量， 将允许更高的动量传递和更高的精度;以及 (7)测量极化中子衰变的D系数， 改进中子半衰期测量，采用先进的 中子通量测量方法

Research will be carried out in the following areas: Precision measurement of atomic Permanent Electric Dipole Moments and fundamental symmetries; electron scattering from polarized He-3 at intermediate and high energies to extract information on neutron structure; neutron beta-decay experiments to measure the neutron half life and measure the D-coefficient with a polarized neutron beam. Specific goals over the next three years are (1) Measurement of the permanent electric dipole moment of Xe-129 with He-3 magnetometry using magnetic induction detection of free precession; (2) Development of new precision measurement techniques one to two orders of magnitude more sensitive than the magnetic induction technique with application to the electric dipole moment experiments and tests of fundamental ideas including Linearity in Quantum Mechanics and Local Lorentz Invariance; (3) To run SLAC experiments E-142, polarized electron scattering from polarized He-3 to measure the spin dependent structure function of the neutron and test the Bjorken sum rule; (4) To run SLAC experiment E-143, polarized electron scattering from polarized H1 and H2 as part of the program begun with E-142; (5) To run experiments 88-25 at Bates, inclusive quasi-elastic scattering of polarized electrons from polarized He-3; (6) To design an experiment to continue the inclusive and exclusive quasi-elastic scattering measurements at CEBAF which will allow higher momentum transfer and greater precision; and (7) To measure the D-coefficient in polarized neutron decay and improve the neutron half life measurements by employing advanced methods of neutron flux measurement.