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Proposal for enhancement of antihydrogen ion production in the GBAR experiment

The production of antihydrogen ions (H̅+) in the GBAR experiment will occur via a two step charge exchange process. In a first reaction, the antiprotons(P̅) from the ELENA ring will capture a positron from a positronium(Ps) target producing antihydrogen (H̅) atoms. Those interacting in the same Ps t...

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Detalles Bibliográficos
Autores principales: Cooke, D A, Husson, A, Lunney, D, Crivelli, P
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:https://dx.doi.org/10.1051/epjconf/201818101002
http://cds.cern.ch/record/2683222
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author Cooke, D A
Husson, A
Lunney, D
Crivelli, P
author_facet Cooke, D A
Husson, A
Lunney, D
Crivelli, P
author_sort Cooke, D A
collection CERN
description The production of antihydrogen ions (H̅+) in the GBAR experiment will occur via a two step charge exchange process. In a first reaction, the antiprotons(P̅) from the ELENA ring will capture a positron from a positronium(Ps) target producing antihydrogen (H̅) atoms. Those interacting in the same Ps target will produce in a second step H̅+. This results in a dependence for the H̅+ production rate which is roughly proportional to the Ps density squared. Wepresent a scheme to increase the anti-ion production rate in the GBAR experiment by tailoring the antiproton to the positron pulse in order to maximise thetemporal overlap of Ps and p̅. Detailed simulations show that an order of magnitude could be gained by bunching the antiprotons from ELENA. In order to avoid losses in their capture in the Paul trap due to the energy spread introducedby the bunching, debunching with a symmetrical inverted pulse can be appliedto the H̅+ ions.
id oai-inspirehep.net-1679619
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
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spelling oai-inspirehep.net-16796192019-09-30T06:29:59Zdoi:10.1051/epjconf/201818101002http://cds.cern.ch/record/2683222engCooke, D AHusson, ALunney, DCrivelli, PProposal for enhancement of antihydrogen ion production in the GBAR experimentPhysics in GeneralThe production of antihydrogen ions (H̅+) in the GBAR experiment will occur via a two step charge exchange process. In a first reaction, the antiprotons(P̅) from the ELENA ring will capture a positron from a positronium(Ps) target producing antihydrogen (H̅) atoms. Those interacting in the same Ps target will produce in a second step H̅+. This results in a dependence for the H̅+ production rate which is roughly proportional to the Ps density squared. Wepresent a scheme to increase the anti-ion production rate in the GBAR experiment by tailoring the antiproton to the positron pulse in order to maximise thetemporal overlap of Ps and p̅. Detailed simulations show that an order of magnitude could be gained by bunching the antiprotons from ELENA. In order to avoid losses in their capture in the Paul trap due to the energy spread introducedby the bunching, debunching with a symmetrical inverted pulse can be appliedto the H̅+ ions.oai:inspirehep.net:16796192018
spellingShingle Physics in General
Cooke, D A
Husson, A
Lunney, D
Crivelli, P
Proposal for enhancement of antihydrogen ion production in the GBAR experiment
title Proposal for enhancement of antihydrogen ion production in the GBAR experiment
title_full Proposal for enhancement of antihydrogen ion production in the GBAR experiment
title_fullStr Proposal for enhancement of antihydrogen ion production in the GBAR experiment
title_full_unstemmed Proposal for enhancement of antihydrogen ion production in the GBAR experiment
title_short Proposal for enhancement of antihydrogen ion production in the GBAR experiment
title_sort proposal for enhancement of antihydrogen ion production in the gbar experiment
topic Physics in General
url https://dx.doi.org/10.1051/epjconf/201818101002
http://cds.cern.ch/record/2683222
work_keys_str_mv AT cookeda proposalforenhancementofantihydrogenionproductioninthegbarexperiment
AT hussona proposalforenhancementofantihydrogenionproductioninthegbarexperiment
AT lunneyd proposalforenhancementofantihydrogenionproductioninthegbarexperiment
AT crivellip proposalforenhancementofantihydrogenionproductioninthegbarexperiment