Production & decay of a B-zero meson in the ALEPH detector at CERN,the particle physics lab near Geneva. The computer display shows in cross- section the innermost part of the detector,white lines representing silicon strips detectors. An unseen electron and positron,accelerated to high energy in CERN's LEP collider,annihilate at centre to create a B meson consisting of a bottom quark bound with a strange antiquark. The B meson is unseen but decays,in several stages (see A142/449 for close-up) to produce an electron (green track),an unseen neutrino,2 kaons (blue) & a pion (yellow). Other particles created in the original electron-positron collision are red | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Cern |
Taille de l’image : | 2193 px × 2201 px |
Model Release : | Non requis |
Property Release : | Non requis |
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