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Leptons, quarks and bosons
- According to the Standard Model, there are three families of elementary particles. When we say 'elementary', scientists mean particles that cannot be broken down into even smaller particles. These are the smallest particles that together make up every other particle. The three families are leptons, quarks and bosons.
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In particle physics, an elementary particle or fundamental particle is a subatomic particle that is not composed of other particles. [1] The Standard Model presently recognizes seventeen distinct particles—twelve fermions and five bosons.
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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 electric and strong interactions are identical. There are three generations according to the Standard Model of particle physics. Each generation contains two types of ...
Jun 7, 2022 · The Standard Model of elementary particles has three nearly identical copies of particles: generations. And nobody knows why. The quarks, antiquarks, and gluons of the standard model have a...
- Ethan Siegel
Sep 22, 2022 · According to the Standard Model, there are three families of elementary particles. When we say 'elementary', scientists mean particles that cannot be broken down into even smaller particles.
May 3, 2012 · Each family in the standard model of particle physics includes four members. The lightest family, for example, consists of the electron, the electron neutrino, the up quark, and the down quark. The other two families are progressively more massive.
3e. Particle Decay. The majority of the particles in Table 3 have ̄nite lifetimes and decay radioactively to some other state or group of particles with a characteristic mean life.5 Most particles that decay have more than one ̄nal state, or \decay mode," available, although frequently one decay mode is dominant.
There are three well-defined lepton pairs, the electron (e−) and the electron neutrino (νe), the muon ( −) and the muon neutrino (νμ), and the (much heavier) charged lepton, the tau (τ), and its tau neutrino (ντ). These particles all have antiparticles, in accordance with the predictions of relativistic quantum mechanics (see CPT Theorem).
