The muon is playing a unique role in sub-atomic physics. Studies of muon decay both determine the overall strength and establish the chiral structure of weak interactions, as well as setting extraordinary limits on charged-lepton-flavor-violating processes. Measurements of the muon's anomalous magnetic moment offer singular sensitivity to the completeness of the standard model and the predictions of many speculative theories. Spectroscopy of muonium and muonic atoms gives unmatched determinations of fundamental quantities including the magnetic moment ratio μμ/μp, lepton mass ratio mμ/me, and proton charge radius rp. Also, muon capture experiments are exploring elusive features of weak interactions involving nucleons and nuclei. We will review the experimental landscape of contemporary high-precision and high-sensitivity experiments with muons. One focus is the novel methods and ingenious techniques that achieve such precision and sensitivity in recent, present, and planned experiments. Another focus is the uncommonly broad and topical range of questions in atomic, nuclear and particle physics that such experiments explore.
|Number of pages||51|
|Journal||Progress in Particle and Nuclear Physics|
|State||Published - Jul 30 2015|
Bibliographical noteFunding Information:
We are grateful to our many friends and colleagues in the worldwide muon physics community who have provided us with considerable materials, figures and feedback, incorporated in this review. In particular, we have had very useful input and contributions from A. Antognini, R. Bernstein, A. de Gouvêa, M. Eides, P. Kammel, D. Kawall, G. Marshall, T. Mibe, J. Miller, T. Mori, R. Pohl, B.L. Roberts, and D. Stockinger. This effort was supported by the National Science Foundation award PHY-1205792 and the DOE Office of Nuclear Physics award DE-FG02-97ER41020 .
© 2015 Elsevier B.V. All rights reserved.
- New physics
- Standard model tests
- Weak interaction
ASJC Scopus subject areas
- Nuclear and High Energy Physics