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    Question

    Which international collaboration achieved the first

    successful laser cooling of Positronium, a short-lived hydrogen-like atom?
    A Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy (AEgIS) Correct Answer Incorrect Answer
    B CERN Research Consortium Correct Answer Incorrect Answer
    C YNOS Venture Engine Correct Answer Incorrect Answer
    D Adani Defence & Aerospace Correct Answer Incorrect Answer
    E Balakot Airstrike Operation Correct Answer Incorrect Answer

    Solution

    The AEgIS collaboration, consisting of multiple research groups, successfully demonstrated the laser cooling of Positronium at CERN, contributing to studies in bound-state quantum electrodynamics.

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