Sentence examples for positron which from inspiring English sources
A positron, which may originate in radioactive decay or, more commonly, in the interactions of cosmic rays in matter, usually combines briefly with an electron to form a quasi-atom called positronium.
And even more rarely, the passing antiproton (which has a negative charge) captures the positron (which is positive), forming a complete atom of antihydrogen.
Some popular theoretical models suggest that if two lingering particles of dark matter collide, they should annihilate to create an ordinary particle and an antiparticle, such as an electron and a positron, which can be observed.
Overall, Weyl's treatment is quite modern except for the confusion regarding the positive electron (anti-electron) that at that time was identified with the proton rather than with the positron, which was discovered a few years later.
After seconds or few minutes following the injection or inhalation of the radiopharmaceutical, the radio-isotope decays emitting a positron, which moves a short distance before annihilating with an electron.
Each of them appears on our new interactive map of literary L.A. Atwood has created a serial novel for Byliner, "Positron," which she is writing in real time.
When CERN created W and Z, it did so by smashing much lighter electrons and positrons, which is far less messy.As the LHC reaches its operational capacity—earlier this month it set a new record for the rate at which collisions occur curious results are bound to crop up more and more frequently.
All this takes place in a magnetic trap, to prevent the the antiprotons and positrons which paired into antihydrogen atoms from bumping into ordinary matter in the walls of the container.The boffins at ALPHA can now routinely hold on to such antiatoms for as long as 15 minutes.
The radionuclides emit positrons which rapidly annihilate with an electron in the tissue while emitting two photons in opposite directions.
In these kinds of events, the ejected material becomes quickly transparent to positrons, which spread out in the interstellar medium.
The EAS mainly consist of charged particles, especially electrons and positrons, which cause electro-magnetic emission in the MHz range by interaction with the Earth's magnetic field.
