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Direct Measurement of the Hyperfine Structure Interval of Positronium Using High-Power Millimeter Wave Technology

Part of the Springer Theses Book Series

DOI: 10.1007/978-4-431-55606-0

ISBN: 978-4-431-55605-3

Publisher: Springer Japan - Springer Journals

Jun 2, 2015

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Chapter 1Introduction

Miyazaki, Akira

Pages: 1 –16

[The motivation and background for the research is introduced in this chapter. Section 1.1 is dedicated as a general introduction to precision testing of Quantum Electrodynamics (QED). Any discrepancy between theory and precise experiment provides insight into constructing new physics....
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Chapter 2Experimental

Miyazaki, Akira

Pages: 17 –61

[This chapter describes the design and setup of the experiment and the tests undertaken. First, in Sect. 2.1, an overview is given of the experiments. Some devices that are normally used in different scientific fields are combined in this experiment. In Sect. 2.2, an optical system composed of a...
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Chapter 3Analysis

Miyazaki, Akira

Pages: 63 –85

[In this chapter, the analysis of the data is described in detail. First, a summary of the acquired data is described in Sect. 3.1. The data calibration and offline trigger selections are described in Sect. 3.2. The time-walks of the LaBr3\documentclass[12pt]{minimal} \usepackage{amsmath}...
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Chapter 4Discussion

Miyazaki, Akira

Pages: 87 –93

[Various topics, including power estimation, cut validation and future prospects, are discussed in this chapter. The power estimation produces one of the biggest systematic uncertainties for this experiment. Because of difficulties in estimating the power of the Fabry–Pérot cavity, its result and...
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Chapter 5Conclusion

Miyazaki, Akira

Pages: 95 –96

[The Ps-HFS was first measured with a direct transition method. Measuring the Ps-HFS is difficult because the Ps-HFS is in the millimeter wave region and the Ps-HFS transition is suppressed by the finite lifetime of Ps.]

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Direct Measurement of the Hyperfine Structure Interval of Positronium Using High-Power Millimeter Wave Technology

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