Generation (particle Physics)
In particle physics, a generation (or family) is a division of the elementary particles. Between generations, particles differ by their (flavour) quantum number and mass, but their interactions are identical.
There are three generations according to the Standard Model of particle physics. Each generation is divided into two leptons and two quarks. The two leptons may be classified into one with electric charge −1 (electron-like) and one neutral (neutrino); the two quarks may be classified into one with charge −1⁄3 (down-type) and one with charge +2⁄3 (up-type).
Read more about Generation (particle Physics): Overview, Fourth Generation
Famous quotes containing the word generation:
“This generation has come into the world fatally late for some enterprises. Go where we will on the surface of things, men have been there before us.... But the lives of men, though more extended laterally in their range, are still as shallow as ever.”
—Henry David Thoreau (1817–1862)