Direct Measurement Of The Hyperfine Structure Interval Of Positronium Using High Power Millimeter Wave Technology
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Direct Measurement Of The Hyperfine Structure Interval Of Positronium Using High Power Millimeter Wave Technology
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Author : Akira Miyazaki
language : en
Publisher: Springer
Release Date : 2015-06-01
Direct Measurement Of The Hyperfine Structure Interval Of Positronium Using High Power Millimeter Wave Technology written by Akira Miyazaki and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-01 with Science categories.
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-Pérot 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.
Publications Of The National Institute Of Standards And Technology Catalog
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Author : National Institute of Standards and Technology (U.S.)
language : en
Publisher:
Release Date : 1985
Publications Of The National Institute Of Standards And Technology Catalog written by National Institute of Standards and Technology (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.
Comprehensive Dissertation Index
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Author :
language : en
Publisher:
Release Date : 1989
Comprehensive Dissertation Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Dissertations, Academic categories.
Physics Briefs
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Author :
language : en
Publisher:
Release Date : 1984
Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Physics categories.
Nuclear Science Abstracts
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Author :
language : en
Publisher:
Release Date : 1969-11
Nuclear Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969-11 with Nuclear energy categories.
Science Abstracts
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Author :
language : en
Publisher:
Release Date : 1953
Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1953 with Electrical engineering categories.
Inis Atomindex
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Author :
language : en
Publisher:
Release Date : 1981
Inis Atomindex written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Nuclear energy categories.