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Why are positrons short lived?

Updated: 10/17/2022
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15y ago

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Positrons don't last long because they are anti-electrons; they are antimatter. And they will combine with an electron after their appearance, and do so in a relatively short period of time. Both particles are oppositely charged and attract each other. And in an event called mutual annihilation, the total mass of both the positron and the electron are converted into energy.

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