from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See positron.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a positron
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an elementary particle with positive charge; interaction of a positron and an electron results in annihilation
Sorry, no etymologies found.
(In normal hydrogen atom an electron is bound to a proton, but in antihydrogen atom an antielectron (positron) is bound to an antiproton.)
The first antielectron was produced in 1932, and particle accelerators helped scientists create the first antiproton in 1955.
If an electron hits an antielectron and is anihalated, does the wave equation field thing dissapear everywhere simultaneously?
The antielectron does not have “anti-mass” in any sense, but looking at the equations you can sort of tilt your head, and if you hold you mouth just right, the antielectron looks like an electron with negative energy moving backward in time.
A free neutron, for example, will decay with a half-life of about 18 minutes into a proton, electron and antielectron-neutrino, due to a down quark decaying into an up quark via the emission of a virtual W- particle.