This historic photograph from the 80-inch (200cm) bubble chamber at the Brookhaven National Laborat- ory shows the first observation of the omega-minus particle,which consists of three strange quarks. A negative kaon enters at bottom left & collides with a proton in the chamber's hydrogen to produce 3 particles,including the omega-minus. The omega travels a short distance before decaying into a negative pion,which veers to the right across the bottom part of the picture,& a neutral xi partic- le which leaves no track. Discovery of the omega in 1964 confirmed Gell-Mann & Ne'eman's classific- ation of subatomic particles,the 'Eightfold Way' | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Brookhaven National Laboratory |
Taille de l’image : | 3000 px × 4331 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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