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    What is a Positron?

    Question #107923. Asked by peach12. (Aug 12 09 8:22 AM)


    maudy2

    		The antiparticle or antimatter counterpart of an electron.....apparently :-o


    http://en.wikipedia.org/wiki/Positron

    Aug 12 09, 8:26 AM
    CellarDoor

    		Quick extension on the antimatter bit: as the electron's antiparticle, the positron has the same mass but opposite electrical charge (i.e. positive, thus the name, rather than negative). It also has the opposite lepton number but that is rarely of interest to anyone but physicists.

    When an electron and a positron meet, they annihilate each other and release energy (i.e. light).

    Positrons are produced naturally, via radioactive decay and various nuclear reactions. They are also produced artificially in particle accelerators.

    http://en.wikipedia.org/wiki/Antiparticle

    Aug 12 09, 8:35 AM

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