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quark    音标拼音: [kw'ɑrk]
n. 一种假设的素粒子

一种假设的素粒子

quark
n 1: (physics) hypothetical truly fundamental particle in mesons
and baryons; there are supposed to be six flavors of quarks
(and their antiquarks), which come in pairs; each has an
electric charge of 2/3 or -1/3; "quarks have not been
observed directly but theoretical predictions based on
their existence have been confirmed experimentally"
2: fresh unripened cheese of a smooth texture made from
pasteurized milk, a starter, and rennet [synonym: {quark cheese},
{quark}]


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  • Quark - Wikipedia
    A quark ( ˈkwɔːrk, ˈkwɑːrk ⓘ) is a type of elementary particle and a fundamental constituent of matter 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 Owing to a phenomenon known as color confinement
  • Quark | Definition, Flavors, Colors | Britannica
    Quark, any member of a group of elementary subatomic particles that are believed to be among the fundamental constituents of matter
  • What Is Quark? - Allrecipes
    Quark is a soft cheese made by warming soured milk until it curdles, then straining it The finished product is firm, creamy, and looks a lot like cottage cheese The mild and creamy spread, a staple in German kitchens, is used to make both sweet and savory dishes
  • QUARK Definition Meaning - Merriam-Webster
    The meaning of QUARK is any of several elementary particles that are postulated to come in pairs (as in the up and down varieties) of similar mass with one member having a charge of +⅔ and the other a charge of —⅓ and are held to make up hadrons Did you know?
  • 11. 4: Quarks - Physics LibreTexts
    Quark Combinations As mentioned earlier, quarks bind together in groups of two or three to form hadrons Baryons are formed from three quarks Sample baryons, including quark content and properties, are given in Table Interestingly, the delta plus (Δ +) baryon is formed from the same three quarks as the proton, but the total spin of the particle is 3 2 rather than 1 2 Similarly, the mass of
  • Quark - New World Encyclopedia
    Quark masses Although one speaks of quark mass in the same way as the mass of any other particle, the notion of mass for quarks is complicated by the fact that quarks cannot be found free in nature As a result, the notion of a quark mass is a theoretical construct, which makes sense only when one specifies exactly the procedure used to define it
  • Quarks - HyperPhysics
    Quarks - HyperPhysics Quarks
  • Quarks Are the Building Blocks of All Matter - HowStuffWorks
    Protons and neutrons, the particles that form the nuclei of atoms, are themselves made up of even smaller particles known as quarks
  • Quarks: What are they? | Space
    Deep within the atoms that make up our bodies and even within the protons and neutrons that make up atomic nuclei, are tiny particles called quarks
  • Quark - Simple English Wikipedia, the free encyclopedia
    Quark Six of the particles in the Standard Model are quarks (shown in purple) Each of the first three columns forms a generation of matter A quark[1] is an elementary particle which makes up hadrons, the most stable of which are protons and neutrons Atoms are made of protons, neutrons and electrons





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