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Anti-hydrogen Experiment: Gravity, Interferometry, Spectroscopy (AEgIS)

Anti-hydrogen Experiment: Gravity, Interferometry, Spectroscopy (AEgIS)
  • In a first, an international team of physicists from the Anti-hydrogen Experiment: Gravity, Interferometry, Spectroscopy (AEgIS) collaboration has achieved a breakthrough by demonstrating the laser cooling of Positronium.

  • It is an experiment approved by CERN (European Organization for Nuclear Research) with the goal of studying antihydrogen physics.

  • The primary goal of AEgIS is the direct measurement of the Earth's gravitational acceleration, g, on antihydrogen.

  • Once performed this could be the first direct test of the gravitational interaction between matter and antimatter.

  • AEgIS is a collaboration of physicists from a number of countries in Europe and from India.

  • Antimatter is the same as ordinary matter except that it has the opposite electric charge.

  • It is also known as “mirror” matter.

  • For instance, an electron, which has a negative charge, has an antimatter partner known as a positron. A positron is a particle with the same mass as an electron but a positive charge.

  • The antimatter particles corresponding to electrons, protons, and neutrons are called positrons, antiprotons, and antineutrons; collectively they are referred to as antiparticles.

  • These anti-particles can combine to form anti-atoms and, in principle, could even form anti-matter regions of our universe.

  • Matter and antimatter cannot coexist at close range for more than a small fraction of a second because they collide with and annihilate each other, releasing large quantities of energy in the form of gamma rays or elementary particles.

  • Antimatter was created along with matter after the Big Bang.

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Published date : 26 Feb 2024 05:12PM

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