μ子g-2实验综述与现状

J. Holzbauer
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引用次数: 9

摘要

费米实验室的μ子g-2实验将测量μ子的异常磁矩,精度达到十亿分之140,比之前在布鲁克海文进行的E821测量提高了四倍。该实验还将把对介子电偶极矩(EDM)的研究扩展大约两个数量级。这两种测量都是通过结合对1.45T存储环磁场的精确测量和对(反)μ子衰变的调制调制的分析来实现的,这些衰变是由24个量热计和3个吸管跟踪探测器记录的。将讨论实验的当前状态以及2017年夏季初始光束交付和调试运行的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Muon g-2 Experiment Overview and Status
The Muon g-2 experiment at Fermilab will measure the anomalous magnetic moment of the muon to a precision of 140 parts per billion, which is a factor of four improvement over the previous E821 measurement at Brookhaven. The experiment will also extend the search for the muon electric dipole moment (EDM) by approximately two orders of magnitude. Both of these measurements are made by combining a precise measurement of the 1.45T storage ring magnetic field with an analysis of the modulation of the decay rate of the higher-energy positrons from the (anti-)muon decays recorded by 24 calorimeters and 3 straw tracking detectors. The current status of the experiment as well as results from the initial beam delivery and commissioning run in the summer of 2017 will be discussed.
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