It, along with the down quark, forms the neutrons (one up quark, two down quarks) and protons (two up quarks, one down quark) of atomic nuclei. It is...

observable matter is composed of up quarks, down quarks and electrons. Owing to a phenomenon known as color confinement, quarks are never found in isolation;...

The strange quark or s quark (from its symbol, s) is the third lightest of all quarks, a type of elementary particle. Strange quarks are found in subatomic...

bottom quark, beauty quark, or b quark, is an elementary particle of the third generation. It is a heavy quark with a charge of −⁠1/3⁠ e. All quarks are...

The top quark, sometimes also referred to as the truth quark, (symbol: t) is the most massive of all observed elementary particles. It derives its mass...

The proton is made of one down quark with two up quarks, and the neutron is made up of two down quarks with one up quark. Because they are found in every...

The charm quark, charmed quark, or c quark is an elementary particle found in composite subatomic particles called hadrons such as the J/psi meson and...

In particle physics, the quark model is a classification scheme for hadrons in terms of their valence quarks—the quarks and antiquarks that give rise to...

Quark is a fictional character in the American television series Star Trek: Deep Space Nine. He was played by Armin Shimerman and is a member of the extraterrestrial...

A quark star is a hypothetical type of compact, exotic star, where extremely high core temperature and pressure have forced nuclear particles to form...

of up and down quarks. Quark matter is a condensed form of matter composed entirely of quarks. When quark matter does not contain strange quarks, it...

Look up quark in Wiktionary, the free dictionary. A quark is an elementary particle. Quark may also refer to: "Quark", a nonce word in James Joyce's Finnegans...

Quark or quarg is a type of fresh dairy product made from milk. The milk is soured, usually by adding lactic acid bacteria cultures, and strained once...

flowing up quarks and down quarks rather than up and down quarks bound into protons and neutrons. Matter containing these nuclides is termed up-down quark matter...

valence quarks, and together with neutrons are now classified as hadrons. Protons are composed of two up quarks of charge +⁠2/3⁠e each, and one down quark of...

Current quarks (also called naked quarks or bare quarks) are a description of valence quarks as the cores of the quark particles that are the invariable...

star, also called a strange quark star,: 352  is a hypothetical compact astronomical object, a quark star made of strange quark matter. Strange stars might...

quarks (up, charm, and top quarks) are called up-type quarks and have T3 = ⁠++1/2⁠ ; the negatively charged quarks (down, strange, and bottom quarks)...

Quark–gluon plasma (QGP or quark soup) is an interacting localized assembly of quarks and gluons at thermal (local kinetic) and (close to) chemical (abundance)...

particle physics, quarkonium (from quark and -onium, pl. quarkonia) is a flavorless meson whose constituents are a heavy quark and its own antiquark, making...

mid-1970s upon experimental confirmation of the existence of quarks. Since then, proof of the top quark (1995), the tau neutrino (2000), and the Higgs boson (2012)...

three positively charged quarks are called "up-type quarks" while the three negatively charged quarks are called "down-type quarks". Leptons do not interact...

helium-4 (in mass). Neutrons are made up of one up and two down quarks, while protons are made of two up and one down quark. Since the other common elementary...

physics, a hadron is a composite subatomic particle made of two or more quarks held together by the strong nuclear force. Pronounced /ˈhædrɒn/ , the name...

including plasma, Bose–Einstein condensates, fermionic condensates, and quark–gluon plasma. Usually atoms can be imagined as a nucleus of protons and...

family of subatomic hadron particles containing one up quark, one down quark, and a third quark from a higher flavour generation, in a combination where...

from the first fermion generation. The first generation consists of up and down quarks which form protons and neutrons, and electrons and electron neutrinos...

first-generation quarks. In the quark model, an up quark and an anti-down quark make up a π+ , whereas a down quark and an anti-up quark make up the π− , and...

equal number of quarks and antiquarks, usually one of each, bound together by the strong interaction. Because mesons are composed of quark subparticles,...

nuclear force, is one of the four known fundamental interactions. It confines quarks into protons, neutrons, and other hadron particles, and also binds neutrons...