W boson production and decay

Videonummer 11931837
Animated particle tracks showing the production and decay of two W particles in the OPAL detector at the LEP at CERN, the particle physics laboratory near Geneva. This computer display shows OPAL in cross-section (green). An electron and positron annihilate at centre to produce two W particles. These live too briefly to be seen but reveal themselves by their decays. One W turns into a quark and an antiquark, which then produce two jets of particles (pale and dark blue tracks leading to yellow and magenta blocks). The other W decays to a muon (orange track, magenta block, red arrow) and an unseen muon neutrino. The positive and negative W particles are bosons, and are the carriers of the weak nuclear force, whose most visible manifestation is in radioactive beta decay.
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Cern
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Länge: 2 Sekunden
Seitenverhältnis: 16:9
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  • Editorial use only. This clip may not be used to state or imply endorsement by CERN of any product, activity or service

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