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

Nicola Zurlo , Stefano Aghion , Claude Amsler , Massimiliano Antonello , Alexandre Belov , Germano Bonomi , Roberto S. Brusa , Massimo Caccia , Antoine Camper , Ruggero Caravita , Fabrizio Castelli , Giovanni Cerchiari , Daniel Comparat (1) , Giovanni Consolati , Andrea Demetrio , Lea Noto , Michael Doser , Craig Evans , Mattia Fanì , Rafael Ferragut , Julian Fesel , Andrea Fontana , Sebastian Gerber , Marco Giammarchi , Angela Gligorova , Francesco Guatieri , Philip Hackstock , Stefan Haider , Alex Hinterberger , Helga Holmestad , Alban Kellerbauer , Olga Khalidova , Daniel Krasnický , Vittorio Lagomarsino , Pierre Lansonneur (2) , Patrice Lebrun (2) , Chloe Malbrunot , Sebastiano Mariazzi , Johann Marton , Victor A. Matveev , Simon R. Müller , Giancarlo Nebbia , Patrick Nedelec (2) , Marcus Oberthaler , Davide Pagano , Luca Penasa , Vojtech Petracek , Francesco Prelz , Marco Prevedelli , Benjamin Rienaecker , Jacques Robert (1) , Ole M. Røhne , Alberto Rotondi , Michele Sacerdoti , Heidi Sandaker , Romualdo Santoro , Lillian Smestad , Fiodor Sorrentino , Gemma Testera , Ingmari C. Tietje , Milena Vujanovic , Eberhard Widmann , Pauline Yzombard , Christian Zimmer , Johann Zmeskal

1 LAC - Laboratoire Aimé Cotton
2 IPNL - Institut de Physique Nucléaire de Lyon

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].

Mots clés: 78.70.Bj; 34.80.Lx; 36.10.Dr; 36.10.-k; Positronium; Charge exchange; Anti-hydrogen atoms

Domaines: Physique Générale [physics.gen-ph]

Nicola Zurlo, Stefano Aghion, Claude Amsler, Massimiliano Antonello, Alexandre Belov, et al.. Monte-Carlo simulation of positronium laser excitation and anti-hydrogen formation via charge exchange. 13th International Conference on Low Energy Antiproton Physics, Mar 2018, Paris, France. pp.18, ⟨10.1007/s10751-019-1553-3⟩. ⟨hal-02073531⟩