Pulsed production of antihydrogen
Antihydrogen atoms with K or sub-K temperature are a powerful tool to precisely probe the validity of fundamental physics laws and the design of highly sensitive experiments needs antihydrogen with controllable and well defined conditions. We present here experimental results on the production of an...
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| Main Authors: | , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
08 February 2021
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| In: |
Communications Physics
Year: 2021, Volume: 4, Pages: 1-11 |
| ISSN: | 2399-3650 |
| DOI: | 10.1038/s42005-020-00494-z |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1038/s42005-020-00494-z Verlag, lizenzpflichtig, Volltext: https://www.nature.com/articles/s42005-020-00494-z 
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| Author Notes: | Claude Amsler, Massimiliano Antonello, Alexander Belov, Germano Bonomi, Roberto Sennen Brusa, Massimo Caccia, Antoine Camper, Ruggero Caravita, Fabrizio Castelli, Patrick Cheinet, Daniel Comparat, Giovanni Consolati, Andrea Demetrio, Lea Di Noto, Michael Doser, Mattia Fanì, Rafael Ferragut, Julian Fesel, Sebastian Gerber, Marco Giammarchi, Angela Gligorova, Lisa Theresa Glöggler, Francesco Guatieri, Stefan Haider, Alexander Hinterberger, Alban Kellerbauer, Olga Khalidova, Daniel Krasnický, Vittorio Lagomarsino, Chloé Malbrunot, Sebastiano Mariazzi, Viktor Matveev, Simon Müller, Giancarlo Nebbia, Patrick Nedelec, Lilian Nowak, Markus Oberthaler, Emmanuel Oswald, Davide Pagano, Luca Penasa, Vojtech Petracek, Luca Povolo, Francesco Prelz, Marco Prevedelli, Benjamin Rienäcker, Ole Røhne, Alberto Rotondi, Heidi Sandaker, Romualdo Santoro, Gemma Testera, Ingmari Tietje, Valerio Toso, Tim Wolz, Pauline Yzombard, Christian Zimmer & Nicola Zurlo |
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| 520 | |a Antihydrogen atoms with K or sub-K temperature are a powerful tool to precisely probe the validity of fundamental physics laws and the design of highly sensitive experiments needs antihydrogen with controllable and well defined conditions. We present here experimental results on the production of antihydrogen in a pulsed mode in which the time when 90% of the atoms are produced is known with an uncertainty of ~250 ns. The pulsed source is generated by the charge-exchange reaction between Rydberg positronium atoms—produced via the injection of a pulsed positron beam into a nanochanneled Si target, and excited by laser pulses—and antiprotons, trapped, cooled and manipulated in electromagnetic traps. The pulsed production enables the control of the antihydrogen temperature, the tunability of the Rydberg states, their de-excitation by pulsed lasers and the manipulation through electric field gradients. The production of pulsed antihydrogen is a major landmark in the AE$$\bar{g}$$IS experiment to perform direct measurements of the validity of the Weak Equivalence Principle for antimatter. | ||
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