Monte-Carlo simulation of positronium laser excitation and anti-hydrogen formation via charge exchange

Zurlo, N.; Aghion, S.; Amsler, C.; Antonello, M.; Belov, A.; Bonomi, G.; Brusa, R. S.; Caccia, M.; Camper, A.; Caravita, R.; Castelli, F.; Cerchiari, G.; Comparat, D.; Consolati, G.; Demetrio, A.; Di Noto, L.; Doser, M.; Evans, C.; Fani, M.; Ferragut, R.; Fesel, J.; Fontana, A.; Gerber, S.; Giammarchi, M.; Gligorova, A.; Guatieri, F.; Hackstock, P.; Haider, S.; Hinterberger, A.; Holmestad, H.; Kellerbauer, A.; Khalidova, O.; Krasnicky, D.; Lagomarsino, V.; Lansonneur, P.; Lebrun, P.; Malbrunot, C.; Mariazzi, S.; Marton, J.; Matveev, V. A.; Muller, S. R.; Nebbia, G.; Nedelec, P.; Oberthaler, M.; Pagano, Deborah; Penasa, L.; Petracek, V.; Prelz, F.; Prevedelli, M.; Rienaecker, B.; Whittaker, ROBERT JAMES; Rohne, O. M.; Rotondi, A.; Sacerdoti, M.; Sandaker, H.; Santoro, Rosina; Smestad, L.; Sorrentino, F.; Testera, G.; Tietje, I. C.; Vujanovic, M.; Widmann, E.; Yzombard, P.; Zimmer, C.; Zmeskal, J.

doi:10.1007/s10751-019-1553-3

The AEgIS experiment aims at producing antihydrogen (and eventually measuring the effects of the Earth gravitational field on it) with a method based on the charge exchange reaction between antiproton and Rydberg positronium. To be precise, antiprotons are delivered by the CERN Antiproton Decelerator (AD) and are trapped in a multi-ring Penning trap, while positronium is produced by a nanoporous silica target and is excited to Rydberg states by means of a two steps laser excitation. New Monte Carlo simulations are presented in this paper in order to investigate the current status of the AEgIS experiment [1] and to interpret the recently collected data [2].

Monte-Carlo simulation of positronium laser excitation and anti-hydrogen formation via charge exchange

Zurlo N.;Aghion S.;Amsler C.;Antonello M.;Belov A.;Bonomi G.;Brusa R. S.;Caccia M.;Camper A.;Caravita R.;Castelli F.;Cerchiari G.;Comparat D.;Consolati G.;Demetrio A.;Di Noto L.;Doser M.;Evans C.;Fani M.;Ferragut R.;Fesel J.;Fontana A.;Gerber S.;Giammarchi M.;Gligorova A.;Guatieri F.;Hackstock P.;Haider S.;Hinterberger A.;Holmestad H.;Kellerbauer A.;Khalidova O.;Krasnicky D.;Lagomarsino V.;Lansonneur P.;Lebrun P.;Malbrunot C.;Mariazzi S.;Marton J.;Matveev V. A.;Muller S. R.;Nebbia G.;Nedelec P.;Oberthaler M.;PAGANO, DEBORAH;Penasa L.;Petracek V.;Prelz F.;Prevedelli M.;Rienaecker B.;WHITTAKER, ROBERT JAMES;Rohne O. M.;Rotondi A.;Sacerdoti M.;Sandaker H.;SANTORO, ROSINA;Smestad L.;Sorrentino F.;Testera G.;Tietje I. C.;Vujanovic M.;Widmann E.;Yzombard P.;Zimmer C.;Zmeskal J.

2019-01-01

Abstract

The AEgIS experiment aims at producing antihydrogen (and eventually measuring the effects of the Earth gravitational field on it) with a method based on the charge exchange reaction between antiproton and Rydberg positronium. To be precise, antiprotons are delivered by the CERN Antiproton Decelerator (AD) and are trapped in a multi-ring Penning trap, while positronium is produced by a nanoporous silica target and is excited to Rydberg states by means of a two steps laser excitation. New Monte Carlo simulations are presented in this paper in order to investigate the current status of the AEgIS experiment [1] and to interpret the recently collected data [2].