Bubble chamber shows associated two particles

Bubble chamber shows associated two particles

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Caption: Bubble chamber photograph showing the associated production of two strange particles (particles containing a strange quark). A negative pion entering from below appears to stop short when it interacts with a proton in the liquid filling the bubble chamber & produces two strange particles: a lambda & a neutral kaon. Because they are both neutral, these particles leave no tracks, but they betray their presence when they decay. The lambda turns into a proton & a negative pion (the V- shaped tracks at upper right), the neutral kaon into a positive pion & a negative pion (the almost right-angled V-shape at lower centre).

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Keywords: associated production, bubble chamber, image, kaon, lambda particle, particle physics, photo, pion, strange particle

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