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Antihydrogen beams

Why does our universe consist purely of matter, even though the same amount of antimatter and matter should have been produced at the moment of the Big Bang 13.8 billion years ago? One of the most potentially fruitful approaches to address the mystery is to study the properties of antihydrogen and a...

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Detalles Bibliográficos
Autores principales: Yamazaki, Yasunori, Doser, Michael, Pérez, Patrice
Lenguaje:eng
Publicado: IOP 2018
Materias:
Acceso en línea:https://dx.doi.org/10.1088/978-0-7503-2021-4
http://cds.cern.ch/record/2311740
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author Yamazaki, Yasunori
Doser, Michael
Pérez, Patrice
author_facet Yamazaki, Yasunori
Doser, Michael
Pérez, Patrice
author_sort Yamazaki, Yasunori
collection CERN
description Why does our universe consist purely of matter, even though the same amount of antimatter and matter should have been produced at the moment of the Big Bang 13.8 billion years ago? One of the most potentially fruitful approaches to address the mystery is to study the properties of antihydrogen and antiprotons. Because they are both stable, we can in principle make measurement precision as high as we need to see differences between these antimatter systems and their matter counterparts, i.e. hydrogen and protons. This is the goal of cold antihydrogen research. To study a fundamental symmetry—charge, parity, and time reversal (CPT) symmetry—which should lead to identical spectra in hydrogen and antihydrogen, as well as the weak equivalence principle (WEP), cold antihydrogen research seeks any discrepancies between matter and antimatter, which might also offer clues to the missing antimatter mystery. Precision tests of CPT have already been carried out in other systems, but antihydrogen spectroscopy offers the hope of reaching even higher sensitivity to violations of CPT. Meanwhile, utilizing the Earth and antihydrogen atoms as an experimental system, the WEP predicts a gravitational interaction between matter and antimatter that is identical to that between any two matter objects. The WEP has been tested to very high precision for a range of material compositions, but no such precision test using antimatter has yet been carried out, offering hope of a telltale inconsistency between matter and antimatter. In this Discovery book, we invite you to visit the frontiers of cold antimatter research, focusing on new technologies to form beams of antihydrogen atoms and antihydrogen ions, and new ways of interrogating the properties of antimatter.
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spelling cern-23117402021-07-30T13:10:47Zdoi:10.1088/978-0-7503-2021-4http://cds.cern.ch/record/2311740engYamazaki, YasunoriDoser, MichaelPérez, PatriceAntihydrogen beamsDetectors and Experimental TechniquesWhy does our universe consist purely of matter, even though the same amount of antimatter and matter should have been produced at the moment of the Big Bang 13.8 billion years ago? One of the most potentially fruitful approaches to address the mystery is to study the properties of antihydrogen and antiprotons. Because they are both stable, we can in principle make measurement precision as high as we need to see differences between these antimatter systems and their matter counterparts, i.e. hydrogen and protons. This is the goal of cold antihydrogen research. To study a fundamental symmetry—charge, parity, and time reversal (CPT) symmetry—which should lead to identical spectra in hydrogen and antihydrogen, as well as the weak equivalence principle (WEP), cold antihydrogen research seeks any discrepancies between matter and antimatter, which might also offer clues to the missing antimatter mystery. Precision tests of CPT have already been carried out in other systems, but antihydrogen spectroscopy offers the hope of reaching even higher sensitivity to violations of CPT. Meanwhile, utilizing the Earth and antihydrogen atoms as an experimental system, the WEP predicts a gravitational interaction between matter and antimatter that is identical to that between any two matter objects. The WEP has been tested to very high precision for a range of material compositions, but no such precision test using antimatter has yet been carried out, offering hope of a telltale inconsistency between matter and antimatter. In this Discovery book, we invite you to visit the frontiers of cold antimatter research, focusing on new technologies to form beams of antihydrogen atoms and antihydrogen ions, and new ways of interrogating the properties of antimatter.IOPoai:cds.cern.ch:23117402018
spellingShingle Detectors and Experimental Techniques
Yamazaki, Yasunori
Doser, Michael
Pérez, Patrice
Antihydrogen beams
title Antihydrogen beams
title_full Antihydrogen beams
title_fullStr Antihydrogen beams
title_full_unstemmed Antihydrogen beams
title_short Antihydrogen beams
title_sort antihydrogen beams
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1088/978-0-7503-2021-4
http://cds.cern.ch/record/2311740
work_keys_str_mv AT yamazakiyasunori antihydrogenbeams
AT dosermichael antihydrogenbeams
AT perezpatrice antihydrogenbeams