Production and decay of tau leptons. 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 detector components (blue & red). The electron & positron,accelerated to high energy in CERN's LEP collider,annihilate at centre to create a Z particle which decays into a tau-plus & a tau-minus. The Z & the taus live too briefly to be seen,but the taus are revealed by their typical '3+3' decay into two back-to-back sets of three pions (coloured tracks). The tau is a lepton,a heavy version of the electron & muon | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Cern |
Taille de l’image : | 3500 px × 3771 px |
Model Release : | Non requis |
Property Release : | Non requis |
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