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Direct Measurement of the Hyperfine Structure Interval of Positronium Using High-Power Millimeter Wave Technology (Hardcover, 2015 ed.) Loot Price: R3,445
Discovery Miles 34 450
Direct Measurement of the Hyperfine Structure Interval of Positronium Using High-Power Millimeter Wave Technology (Hardcover,...

Direct Measurement of the Hyperfine Structure Interval of Positronium Using High-Power Millimeter Wave Technology (Hardcover, 2015 ed.)

Akira Miyazaki

Series: Springer Theses

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Loot Price R3,445 Discovery Miles 34 450 | Repayment Terms: R323 pm x 12*

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In this thesis, the author develops new high-power millimeter wave techniques for measuring the hyperfine structure of positronium (Ps-HFS) directly for the first time in the world. Indirect measurement of Ps-HFS in the literature might have systematic uncertainties related to the use of a static magnetic field. Development of the millimeter wave devices supports the precise determination of Ps-HFS by directly measuring the Breit-Wigner resonant transition from o-Ps to p-Ps without the magnetic field. At the same time, the width of the measured Breit-Wigner resonance directly provides the lifetime of p-Ps. This measurement is the first precise spectroscopic experiment involving the magnetic dipole transition and high-power millimeter waves. The development of a gyrotron and a Fabry-Perot cavity is described as providing an effective power of over 20 kW, which is required to cause the direct transition from o-Ps to p-Ps. Those values measured by the newly developed millimeter wave device pave the way for examining the discrepancy observed between conventional indirect experiments on Ps-HFS and the theoretical predictions of Quantum Electrodynamics.

General

Imprint: Springer Verlag,Japan
Country of origin: Japan
Series: Springer Theses
Release date: June 2015
First published: 2015
Authors: Akira Miyazaki
Dimensions: 235 x 155 x 10mm (L x W x T)
Format: Hardcover
Pages: 122
Edition: 2015 ed.
ISBN-13: 978-4-431-55605-3
Categories: Books > Science & Mathematics > Science: general issues > Scientific standards
Books > Science & Mathematics > Physics > Nuclear structure physics
Books > Science & Mathematics > Physics > Classical mechanics > Sound, vibration & waves (acoustics)
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LSN: 4-431-55605-2
Barcode: 9784431556053

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