POSITRONS

The first ingredient that is needed to create antihydrogen are positrons. The Positron (= positive electron), e+, is the antimatter counterpart of the electron, and was the first antimatter particle that was discovered. Positrons occur naturally at the β+ decay of radioactive material.

  • Microwave measurements (hyperfine)

    Microwave measurements (hyperfine)

    Microwave measurements (hyperfine) The ground state hyperfine splitting (GSHFS) is one of the best measured transitions in hydrogen and plays an important role in astrophysics (where it is known as the 21-cm line) and in tests of fundamental physics. In a magnetic trap, the ground state of antihydrogen (and hydrogen) is split into four hyperfine…

  • Laser Cooling (Be+)

    Laser Cooling (Be+)

    Laser Cooling (Be+) The Doppler effect exists for more types of waves than just sound waves. This also occurs with light, where a moving observer will see a difference in the frequency of light compared to a stationary observer. This effect occurs when atoms are moving with respect to laser light, which is light of…