Positron in a sentence as a noun

Electron-positron pair creation from ultra high energy gamma rays has been a known thing for a long time.

Both + decay and electron capture have an analogous process for positrons.

The additional data will help the determination of dark matter vs. pulsars as the positron source.

You can even make a hydrogen atom out of an antiproton and a positron, called antihydrogen.

In it, Dr. Watchstop builds a machine capable of disproving this theory by utterly destroying an electron without creating a positron.

And clearly, there is considerable debate whether the positron excess is from dark matter particle annihilation or from nearby pulsars.

The neutron will decay into a proton by emitting and electron, while the anti-neutron will decay into an anti-proton while emitting a positron.

For instance, the electron can shoot of a virtual photon, which creates an electron/positron pair, which annhilate and create a new photon, which is then absorbed by the original electron.

Not to "actually" here, but actually... while positron/electron annihilation results in just photons most of the time the situation with anti-proton/proton annihilation is much more complex.

When an anti-hydrogen atom collides with any normal atom an electron will annihilate with the anti-hydrogen's positron leaving behind a negatively charged anti-proton which will fairly rapidly collide with a positively charged proton in a nucleus.

X' + nubar + e- -> X'' + 2 e- But it is only possible if the anti-neutrino is actually a normal neutrino, since otherwise the second reaction would need to create a positron, which would mean that the initial and final nucleus are identical, which means that there is no mass difference to create the electron positron pair.

Positron definitions

noun

an elementary particle with positive charge; interaction of a positron and an electron results in annihilation

See also: antielectron