Quark - Wikipedia
Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei. [1] All commonly observable matter is composed of up quarks, down quarks and electrons.
Quarks: What are they? | Space
2022年11月1日 · Quarks are the ultimate building blocks of visible matter in the universe. If we could zoom in on an atom in your body, we would see that it consists of electrons swarming in orbits around a...
Quark | Definition, Flavors, & Colors | Britannica
2024年10月30日 · quark, any member of a group of elementary subatomic particles that interact by means of the strong force and are believed to be among the fundamental constituents of matter.
DOE Explains...Quarks and Gluons | Department of Energy
Quarks and gluons are the building blocks of protons and neutrons, which in turn are the building blocks of atomic nuclei. Scientists’ current understanding is that quarks and gluons are indivisible—they cannot be broken down into smaller components. They are the only fundamental particles to have something called color-charge.
11.4: Quarks - Physics LibreTexts
Six known quarks exist: up (u), down (d), charm (c), strange (s), top (t), and bottom (b). These particles are fermions with half-integral spin and fractional charge. Baryons consist of three quarks, …
DOE Explains...the Standard Model of Particle Physics
It explains how particles called quarks (which make up protons and neutrons) and leptons (which include electrons) make up all known matter. It also explains how force carrying particles, which belong to a broader group of bosons, influence the quarks and leptons.
23.2 Quarks - Physics - OpenStax
Quarks were first proposed independently by American physicists Murray Gell-Mann and George Zweig in 1963. Originally, three quark types—or flavors —were proposed with the names up (u), down (d), and strange (s). At first, physicists expected that, with sufficient energy, we should be able to free quarks and observe them directly.
Quarks - HyperPhysics
Quarks and Leptons are the building blocks which build up matter, i.e., they are seen as the "elementary particles". In the present standard model, there are six "flavors" of quarks. They can successfully account for all known mesons and baryons (over 200).
Fifty years of quarks - CERN
2014年1月17日 · In 1964, two physicists independently proposed the existence of the subatomic particles known as quarks. Physicists Murray Gell-Mann and George Zweig were working independently on a theory for strong interaction symmetry in particle physics.
Explainer: quarks - The Conversation
2013年2月15日 · Quarks and leptons interact via four forces to make the universe we know today. Six types of quarks have so far been experimentally confirmed, given the names of “up”, “down”, “strange”,...