Testing the weak interaction using St. Benedict at the University of Notre Dame
Testing the weak interaction using St. Benedict at the University of Notre Dame
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DOI：
10.1016/j.nimb.2019.04.017
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发表时间：
2020-01-15
影响因子：
1.3
通讯作者：
Varentsov, V.
中科院分区：
文献类型：
--
作者：
O'Malley, P. D.;Brodeur, M.;Varentsov, V.
物理学的标准模型提供了对宇宙中物质的描述，但福尔斯却再现了许多无法解释的特征，如中微子振荡和物质-反物质的不对称性。一种将物理学限制在标准模型之外的方法是通过精确确定Cabibbo-Kobayashi-Maskawa矩阵的V-ud矩阵元素，从超允许混合β衰变跃迁的ft值。然而，这样的测试需要确定费米到伽莫夫-泰勒混合比，这是目前未知的所有，但五个混合镜像过渡核。圣母大学正在进行一个项目，开发一个保罗陷阱，致力于测量这个难以捉摸的量。将提出设计和目标。
The Standard Model of physics provides a description of matter in the universe, but falls to reproduce many unexplained features, such as neutrino oscillations and the matter-antimatter asymmetry. One avenue to constrain physics beyond the Standard Model is via the precise determination of the V-ud matrix element of the Cabibbo-Kobayashi-Maskawa matrix from the ft-value of superallowed mixed beta-decay transitions. Such tests however require the determination of the Fermi to Gamow-Teller mixing ratio, which is currently unknown for all but five mixed mirror transition nuclei. At the University of Notre Dame a project is underway to develop a Paul trap devoted to the measurement of this elusive quantity. The design and goals will be presented.