Annihilation of antiproton in bubble chamber

Annihilation of antiproton in bubble chamber

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Credit: LAWRENCE BERKELEY LABORATORY/SCIENCE PHOTO LIBRARY

Caption: Annihilation in a bubble chamber. False-colour image from a hydrogen bubble chamber showing the annihilation of an antiproton (horizontal line entering at left) and a proton. The annihilation event has occurred at the intersection point just right of centre. Only charged particles leave tracks in such chambers; the passage of neutral particles has to be inferred from these data. Spiral tracks are due to low-energy electrons and positrons. In modern, extremely high- energy particle experiments, the bubble chamber has been supplanted by electronic detectors.

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Keywords: antiproton, bubble chamber, colour, coloured, hydrogen, image, particle, particle physics, particle tracks, particles, photo, proton-antiproton collision, track

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