Abstract
We consider the implications of the recent measurement of the W-boson mass MW=80,433.5±9.4MeV/c2 for atomic parity violation experiments. We show that the change in MW shifts the Standard Model prediction for the 133Cs nuclear weak charge to QW(133Cs)=−73.11(1), i.e., by 8.5σ from its current value, and the proton weak charge by 2.7%. The shift in QW(133Cs) ameliorates the tension between existing determinations of its value and motivates more accurate atomic theory calculations, while the shift in QW(p) inspires next-generation atomic parity violation experiments with hydrogen. Using our revised value for QW(133Cs), we also readjust constraints on parameters of physics beyond the Standard Model. Finally, we reexamine the running of the electroweak coupling for the new W boson mass.
Funder
U.S. National Science Foundation
Center for Fundamental Physics at Northwestern University
Subject
Condensed Matter Physics,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics
Reference117 articles.
1. Measurement of Parity Nonconservation and an Anapole Moment in Cesium;Wood;Science,1997
2. Spectroscopy with trapped francium: Advances and perspectives for weak interaction studies;Gomez;Rep. Prog. Phys.,2005
3. Using Molecules to Measure Nuclear Spin-Dependent Parity Violation;DeMille;Phys. Rev. Lett.,2008
4. Measurement of a weak transition moment using two-pathway coherent control;Antypas;Phys. Rev. A,2013
5. Choi, J., Sutherland, R.T., Toh, G., Damitz, A., and Elliott, D.S. (2018). Gain measurement scheme for precise determination of atomic parity violation through two-pathway coherent control. arXiv.
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献