Z particle decay in ALEPH detector, CERN

Z particle decay in ALEPH detector, CERN

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Restrictions: Editorial use only. This image may not be used to state or imply endorsement by CERN of any product, activity or service

Caption: Z particle event. Electronic display of an electron-positron collision in the ALEPH detector at CERN, the particle physics lab near Geneva. The display shows a cross-section of the detector, with the beam tube in the centre (blue) surrounded by various detector components (blue & red). The electron & positron, accelerated to high energy in CERN's LEP collider, annihilate at centre & create a Z particle (one of the carriers of the weak nuclear force). The Z lives too briefly to be detected, but is revealed when it decays to a muon & antimuon (yellow tracks at left) & a photon. The neutral photon leaves no track but deposits energy (upper right) in one of ALEPH's layers.

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Keywords: aleph detector, antimatter, cern, computer screen, electronic display, force-carrying particles, gauge bosons, gluons, high-energy physics, lep collider, matter, muons, particle physics research, photons, quarks, subatomic particles, the particle odyssey, weak nuclear force, z particle

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