Antihydrogen formation at AEgIS at CERN leverages charge exchange between Rydberg positronium (Ps*) and antiprotons, with cross-sections scaling with the Ps principal quantum number n4 and inversely with relative velocity v−2. However, the motional Stark effect and velocity mismatch between Ps and antiprotons impose stringent constraints, limiting efficiency. Advances in transmission positronium converters mitigate self-ionization losses and improve velocity alignment, promising a significant boost in antihydrogen yield. This work evaluates formation cross-sections, Ps velocity profiles, and the integration of advanced transmission Ps converters for precision gravitational studies.

Prospects for forward emitted positronium from nanoporous membranes at AEgIS / Rienacker, B., Alfaro Campos, S., Auzins, M., Berghold, M., Bergmann, B., Burian, P., Brusa, R.S., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Ciuryło, R., Chehaimi, A., Consolati, G., Doser, M., Eliaszuk, K., Ferguson, R., Germann, M., Giszczak, A., Glöggler, L.T., et al.. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 480:(2025), pp. 082-082. (2024 Exotic Atoms and Related Topics Conference and the Low Energy Antiproton Conference, EXA-LEAP 2024 Vienna 26th August-30th August 2024) [10.22323/1.480.0082].

Prospects for forward emitted positronium from nanoporous membranes at AEgIS

Brusa, Roberto Sennen;Chehaimi, Ahmad;Ferguson, Riley;Mariazzi, Sebastiano;Penasa, Luca;
2025-01-01

Abstract

Antihydrogen formation at AEgIS at CERN leverages charge exchange between Rydberg positronium (Ps*) and antiprotons, with cross-sections scaling with the Ps principal quantum number n4 and inversely with relative velocity v−2. However, the motional Stark effect and velocity mismatch between Ps and antiprotons impose stringent constraints, limiting efficiency. Advances in transmission positronium converters mitigate self-ionization losses and improve velocity alignment, promising a significant boost in antihydrogen yield. This work evaluates formation cross-sections, Ps velocity profiles, and the integration of advanced transmission Ps converters for precision gravitational studies.
2025
Proceedings of Science
Trieste
Sissa Medialab Srl
Rienacker, B.; Alfaro Campos, Sara; Auzins, Marcis; Berghold, Michael; Bergmann, Benedikt; Burian, Petr; Brusa, Roberto Sennen; Camper, Antoine; Carav...espandi
Prospects for forward emitted positronium from nanoporous membranes at AEgIS / Rienacker, B., Alfaro Campos, S., Auzins, M., Berghold, M., Bergmann, B., Burian, P., Brusa, R.S., Camper, A., Caravita, R., Castelli, F., Cerchiari, G., Ciuryło, R., Chehaimi, A., Consolati, G., Doser, M., Eliaszuk, K., Ferguson, R., Germann, M., Giszczak, A., Glöggler, L.T., et al.. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 480:(2025), pp. 082-082. (2024 Exotic Atoms and Related Topics Conference and the Low Energy Antiproton Conference, EXA-LEAP 2024 Vienna 26th August-30th August 2024) [10.22323/1.480.0082].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/480651
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