International collaboration of physicists achieves first successful laser cooled Positronium

• For the first time, an international collaboration of researchers has successfully demonstrated the laser cooling of Positronium, a short-lived hydrogen-like atom that provides an ideal testing ground for bound-state quantum electrodynamics.
• The Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy (AEgIS) collaboration has performed complex experiments at the European Organization for Nuclear Research (CERN) in order to obtain this breakthrough.
• The results could pave the way for taking up advanced studies leading to improved understanding of the physical nature, comprising matter and antimatter facilitated through the interactions between light and charged matter.
• Positronium is a fundamental atom that comprises an electron (e-) and a positron (e+). Electrons and positrons are leptons, and they interact through electromagnetic and weak forces. A usual atom is made up of a mixture of baryons and leptons. Since Positronium is only made up of electrons and positrons, and no usual nuclear matter, it has the unique distinction of being a purely leptonic atom.

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Published date : 26 Feb 2024 05:28PM