Z particle decay in UA1 detector, CERN

Z particle decay in UA1 detector, CERN

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Credit: DAVID PARKER/SCIENCE PHOTO LIBRARY

Caption: Z particle decay in the UA1 detector at the CERN particle physics laboratory, Geneva. Discovered at CERN in 1983, the Z is one of the "carrier" particles which mediate the weak force. A proton & antiproton have collided & annihilated into pure energy in CERN's SPS collider. The energy rematerialises as a number of particles which include a Z; the Z is not visible because it immediately decays into other particles. In this computer display the UA1 detector is outlined in red. The Z has decayed into two high-energy electrons (white & purple tracks) & a number of other particles (green tracks). (Run 6059, Event 1010)

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Keywords: cern, computer graphics, computer screen, electron, electronic display, electroweak theory, gauge particle, particle physics research, uai detector, weak nuclear force, z particle

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