What are the current experimental techniques used to create antihydrogen beams?
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Experimental techniques for creating antihydrogen beams involve various methods. The GBAR experiment at CERN successfully produced antihydrogen beams by charge exchange of antiprotons with positronium, demonstrating a significant excess over background signals . Another approach involves using laser fields to influence the collision process between positronium atoms and antiprotons, potentially increasing antihydrogen production rates significantly . Additionally, the AEgIS project at CERN achieved the production of antihydrogen atoms in a pulsed mode by charge exchange with laser-excited positronium, allowing for precise timing and control over the production process . Furthermore, advancements in low-energy antiproton transport have been made, reducing longitudinal energy spreads and enhancing antihydrogen production rates through direct injection into a positron plasma .
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| Papers (5) | Insight |
|---|---|
| Adiabatic transport beamline with pulse-driven coaxial coils reduces antiproton energy spread to 0.23±0.02 eV, enhancing antihydrogen production rate by direct injection into a positron plasma. | |
| Antihydrogen beams are created using a pulsed method involving charge exchange between laser-excited positronium and antiprotons in traps, enabling precise timing and control of production. | |
| The current experimental technique involves optimizing a low-energy beamline for transporting positrons and antiprotons between Penning traps with strong magnetic fields, achieving high transfer efficiency. | |
27 Jun 2023 | Antihydrogen beams are produced by charge exchange of 6.1 keV antiprotons with a positronium cloud, as demonstrated in the GBAR experiment at CERN. |
| Laser-assisted collisions between positronium atoms and antiprotons are explored to enhance antihydrogen production rates, offering a potential technique for creating antihydrogen beams in experiments. |
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