Production and decay of negative xi particle

Production and decay of negative xi particle

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Caption: Bubble chamber photo of the production & decay of a negative xi particle. Negative kaons enter at bottom & stream up the picture. One collides near the bottom with a proton in the bubble chamber liquid, producing a negative xi & a positive kaon. The xi decays almost immediately to a lambda & a negative pion. Being neutral, the lambda leaves no track, but reveals itself when it decays to a negative pion & a proton. Kaons, xi & lambda particles are strange particles, containing a strange quark. The xi is also known as the cascade particle.

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Keywords: bubble chamber photo, cascade particle, image, kaon, lambda particle, negative, particle physics, photo, pion, strange particle, track, tracks, xi particle, xi-minus particle

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