Developments for pulsed antihydrogen production towards direct gravitational measurement on antimatter
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00346358" target="_blank" >RIV/68407700:21340/20:00346358 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1402-4896/abbaa1" target="_blank" >https://doi.org/10.1088/1402-4896/abbaa1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1402-4896/abbaa1" target="_blank" >10.1088/1402-4896/abbaa1</a>
Alternative languages
Result language
angličtina
Original language name
Developments for pulsed antihydrogen production towards direct gravitational measurement on antimatter
Original language description
A main scientific goal of theAEg over bar ISgon antihydrogen. The Weak Equivalence Principle is a foundation of General Relativity. It has been extensively tested with ordinary matter but very little is known about the gravitational interaction between matter and antimatter. Antihydrogen is produced inAEg over bar IS<ivia resonant charge-exchange reaction between cold Rydberg-excited positronium and cooled down antiprotons. The achievements for the development of a pulsed cold antihydrogen source are presented. Large number of antiprotons, necessary for a significant production rate of antihydrogen, are captured, accumulated, compressed and cooled over an extended period of time. Positronium (Ps) is formed through e(+)-Ps conversion in a silica porous target at 10 K temperature in a reflection geometry inside the main apparatus. The so-formed Ps cloud is then laser-excited to Rydberg levels, for the first time in a 1 T magnetic field. Consequently, a detailed characterization of the Ps source for antihydrogen production in magnetic field needed to be performed. Several detection techniques are extensively used to monitor antiproton and positron manipulations in the formation process of antihydrogen inside the main apparatus. Positronium detection techniques underwent extensive improvements in sensitivity during the last antiproton run. At the same time, major efforts to improve integrate and commission the detectors sensitive to antihydrogen production took place.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
<a href="/en/project/LTT17018" target="_blank" >LTT17018: Getting new knowledge of the microworld using the CERN infrastructure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physica Scripta
ISSN
0031-8949
e-ISSN
1402-4896
Volume of the periodical
95
Issue of the periodical within the volume
11
Country of publishing house
SE - SWEDEN
Number of pages
8
Pages from-to
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UT code for WoS article
000576074100001
EID of the result in the Scopus database
2-s2.0-85092698155