Analysis of the timing of freely falling antihydrogen
We evaluate the accuracy to be expected for the measurement of free fall acceleration of antihydrogen in the GBAR experiment, accounting for the recoil transferred in the photodetachment process. We show that the uncertainty on the measurement of gravity comes mainly from the initial velocity disper...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ac5b57 |
| _version_ | 1797748506199326720 |
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| author | Olivier Rousselle Pierre Cladé Saïda Guellati-Khelifa Romain Guérout Serge Reynaud |
| author_facet | Olivier Rousselle Pierre Cladé Saïda Guellati-Khelifa Romain Guérout Serge Reynaud |
| author_sort | Olivier Rousselle |
| collection | DOAJ |
| description | We evaluate the accuracy to be expected for the measurement of free fall acceleration of antihydrogen in the GBAR experiment, accounting for the recoil transferred in the photodetachment process. We show that the uncertainty on the measurement of gravity comes mainly from the initial velocity dispersion in the ion trap so that the photodetachment recoil is not the limiting factor to the precision as a naive analysis would suggest. This result will ease the constraints on the choice of the photodetachment laser parameters. |
| first_indexed | 2024-03-12T16:05:46Z |
| format | Article |
| id | doaj.art-9bc76d02e7b64e70824723c9342f74e0 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:05:46Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-9bc76d02e7b64e70824723c9342f74e02023-08-09T14:21:26ZengIOP PublishingNew Journal of Physics1367-26302022-01-0124303304510.1088/1367-2630/ac5b57Analysis of the timing of freely falling antihydrogenOlivier Rousselle0https://orcid.org/0000-0002-7494-2135Pierre Cladé1https://orcid.org/0000-0001-5070-8734Saïda Guellati-Khelifa2https://orcid.org/0000-0002-8412-411XRomain Guérout3Serge Reynaud4https://orcid.org/0000-0002-1494-696XLaboratoire Kastler Brossel, Sorbonne Université , CNRS, ENS-PSL, Collège de France, Campus Pierre et Marie Curie, 4 place Jussieu, 75005 Paris, FranceLaboratoire Kastler Brossel, Sorbonne Université , CNRS, ENS-PSL, Collège de France, Campus Pierre et Marie Curie, 4 place Jussieu, 75005 Paris, FranceLaboratoire Kastler Brossel, Sorbonne Université , CNRS, ENS-PSL, Collège de France, Campus Pierre et Marie Curie, 4 place Jussieu, 75005 Paris, France; Conservatoire National des Arts et Métiers , 292 rue Saint Martin, 75003 Paris, FranceLaboratoire Kastler Brossel, Sorbonne Université , CNRS, ENS-PSL, Collège de France, Campus Pierre et Marie Curie, 4 place Jussieu, 75005 Paris, FranceLaboratoire Kastler Brossel, Sorbonne Université , CNRS, ENS-PSL, Collège de France, Campus Pierre et Marie Curie, 4 place Jussieu, 75005 Paris, FranceWe evaluate the accuracy to be expected for the measurement of free fall acceleration of antihydrogen in the GBAR experiment, accounting for the recoil transferred in the photodetachment process. We show that the uncertainty on the measurement of gravity comes mainly from the initial velocity dispersion in the ion trap so that the photodetachment recoil is not the limiting factor to the precision as a naive analysis would suggest. This result will ease the constraints on the choice of the photodetachment laser parameters.https://doi.org/10.1088/1367-2630/ac5b57antihydrogenweak equivalence principlephotodetachment |
| spellingShingle | Olivier Rousselle Pierre Cladé Saïda Guellati-Khelifa Romain Guérout Serge Reynaud Analysis of the timing of freely falling antihydrogen New Journal of Physics antihydrogen weak equivalence principle photodetachment |
| title | Analysis of the timing of freely falling antihydrogen |
| title_full | Analysis of the timing of freely falling antihydrogen |
| title_fullStr | Analysis of the timing of freely falling antihydrogen |
| title_full_unstemmed | Analysis of the timing of freely falling antihydrogen |
| title_short | Analysis of the timing of freely falling antihydrogen |
| title_sort | analysis of the timing of freely falling antihydrogen |
| topic | antihydrogen weak equivalence principle photodetachment |
| url | https://doi.org/10.1088/1367-2630/ac5b57 |
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