Kaon-proton collision. Particle tracks showing negative kaons (parallel lines) passing from bottom to top through a bubble chamber full of hydrogen li
Kaon-proton collision. Particle tracks showing negative kaons (parallel lines) passing from bottom to top through a bubble chamber full of hydrogen liquid. One of the kaons has collided (bottom) with a hydrogen nucleus (proton), producing charged particles, one of which, a positive pion, loops round anticlockwise to upper left before stopping. It then decays into a muon, which travels a short distance before itself decaying into an anti-electron or positron. This spirals a few times, reaching the cross at upper left. This photograph was taken in the CERN 2-metre hydrogen bubble chamber. The region shown here is about 50 centimetres tall.
Size: 3455px × 5116px
Photo credit: © GORONWY TUDOR JONES, UNIVERSITY OF BIRMINGHAM/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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