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Enhanced anti-hydrogen ion production

The production of anti-hydrogen ions in the GBAR experiment will occur via a two step charge exchange process. In a first reaction, the anti-protons from the ELENA ring at CERN will capture a positron from a positronium target producing anti-hydrogen atoms. Those interacting in the same positronium...

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Detalles Bibliográficos
Autores principales: Cooke, D.A., Husson, A., Lunney, D., Crivelli, P.
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:http://cds.cern.ch/record/2276905
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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 anti-hydrogen ions in the GBAR experiment will occur via a two step charge exchange process. In a first reaction, the anti-protons from the ELENA ring at CERN will capture a positron from a positronium target producing anti-hydrogen atoms. Those interacting in the same positronium target will produce in a second step anti-hydrogen ions. This results in a dependence for the anti-ions production rate which is roughly proportional to the positronium density squared. We present a scheme to increase the anti-ions production rate in the GBAR experiment by tailoring the anti-proton to the positron pulse in order to maximise the temporal overlap of Ps and anti-protons. Detailed simulations show that an order of magnitude could be gained by bunching the anti-protons from ELENA. In order to avoid losses in their capture in the Paul trap due to the energy spread introduced by the bunching, debunching with a symmetrical inverted pulse can be applied to the anti-hydrogen ions.
id cern-2276905
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
record_format invenio
spelling cern-22769052023-09-29T02:20:23Zhttp://cds.cern.ch/record/2276905engCooke, D.A.Husson, A.Lunney, D.Crivelli, P.Enhanced anti-hydrogen ion productionphysics.atom-phOther Fields of Physicshep-exParticle Physics - ExperimentThe production of anti-hydrogen ions in the GBAR experiment will occur via a two step charge exchange process. In a first reaction, the anti-protons from the ELENA ring at CERN will capture a positron from a positronium target producing anti-hydrogen atoms. Those interacting in the same positronium target will produce in a second step anti-hydrogen ions. This results in a dependence for the anti-ions production rate which is roughly proportional to the positronium density squared. We present a scheme to increase the anti-ions production rate in the GBAR experiment by tailoring the anti-proton to the positron pulse in order to maximise the temporal overlap of Ps and anti-protons. Detailed simulations show that an order of magnitude could be gained by bunching the anti-protons from ELENA. In order to avoid losses in their capture in the Paul trap due to the energy spread introduced by the bunching, debunching with a symmetrical inverted pulse can be applied to the anti-hydrogen ions.arXiv:1612.07814oai:cds.cern.ch:22769052016
spellingShingle physics.atom-ph
Other Fields of Physics
hep-ex
Particle Physics - Experiment
Cooke, D.A.
Husson, A.
Lunney, D.
Crivelli, P.
Enhanced anti-hydrogen ion production
title Enhanced anti-hydrogen ion production
title_full Enhanced anti-hydrogen ion production
title_fullStr Enhanced anti-hydrogen ion production
title_full_unstemmed Enhanced anti-hydrogen ion production
title_short Enhanced anti-hydrogen ion production
title_sort enhanced anti-hydrogen ion production
topic physics.atom-ph
Other Fields of Physics
hep-ex
Particle Physics - Experiment
url http://cds.cern.ch/record/2276905
work_keys_str_mv AT cookeda enhancedantihydrogenionproduction
AT hussona enhancedantihydrogenionproduction
AT lunneyd enhancedantihydrogenionproduction
AT crivellip enhancedantihydrogenionproduction