Particle tracks: proton-photon collision

Particle tracks: proton-photon collision

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Caption: Proton-photon collision. Coloured image obtained with a bubble chamber at the Stanford Linear Accelerator Center (SLAC), showing the collision between an hydrogen nucleus (proton) and a high- energy photon. The collision has taken place in the area at centre right; the track of the photon is not visible because only charged particles leave tracks in a bubble chamber. Nine particles are seen branching from the collision site heading towards the bottom of the image. The tight spirals scattered in the frame are electrons whose trajectories are strongly curved by the magnetic field of the bubble chamber.

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Keywords: bubble chamber, image, images, impact event force energy, magnified image, microscopic photos, motion action, move movement moving, particle physics, particle tracks, photo, photon, photon collision, physics, proton, proton collision, proton-photon, quantum, round, sphere, spherical, subatomic, subjects

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