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:
“Man is distinguished, not only by his reason; but also by this singular passion from other animals ... which is a lust of the mind, that by a perseverance of delight in the continual and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.”
—Thomas Hobbes (1588–1679)