Symmetrical production of matter and antimatter

Symmetrical production of matter and antimatter

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This image is part of the feature Top 50 Science
This image is part of the feature Centenery Of The Electron
This image is part of the feature Science Creates First Antiatom


Caption: False-colour bubble chamber photograph showing the symmetrical production of matter & antimatter. Two invisible gamma-ray photons enter from the top & each produce a pair of electrons (green) & positrons - or anti-electrons (red). In the upper example, the incoming photon also displaces an atomic electron, which shoots off towards bottom left. In the lower example, all the photon's energy goes into the production of the electron- positron pair; being more energetic, this pair curves less in the bubble chamber's magnetic field than the upper pair, which form the characteristic spiral tracks of low-energy electrons & positrons.

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Keywords: antimatter, bubble chamber, electron, electron-positron pair, electrons, image, images, impact event force energy, magnified image, matter-antimatter, microscopic photos, motion action, move movement moving, particle physics, photo, positron, spiral, subjects, symmetry

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