noun
definition
The antimatter equivalent of an electron, having the same mass but a positive charge
example
The notion of a positron weapon remains the stuff of science fiction.
Examples of positrons in a Sentence
Last year the ATRAP experiment was the first to use cold positrons to cool antiprotons.
So we have certain atoms that fall apart and produce positrons, which are promptly annihilated by the first electron they meet.
The next stage is to mix them with about 75 million cold positrons.
At a temperature of 4.2 K, the trapped positrons are an ultracold plasma, a frigid collection of charged particles.
The techniques used to produce beams of low energy positrons can also be adapted to create beams of low energy muons.