WebPropriétés. Comme tous les quarks, le quark up est un fermion.Il s'agit d'un quark de 1 re génération possédant une charge électrique de ⅔ e, le quark le plus léger avec une masse comprise entre 1,5 et 3 MeV.c-2.. Selon le modèle standard, il forme avec le quark down les nucléons ; le proton contient un quark down et deux quarks up, tandis que le neutron …

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Webelectron charge, (symbol e), fundamental physical constant expressing the naturally occurring unit of electric charge, equal to 1.602176634 × 10−19 coulomb. In addition to the electron, all freely existing charged subatomic particles thus far discovered have an electric charge equal to this value or some whole-number multiple of it. Quarks, which are …

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WebThe up quark or u quark (symbol: u) is the lightest of all quarks, a type of elementary particle, and a significant constituent of matter.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 part of the first generation of matter, has an electric charge of + 2 / 3 e …

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WebA strangelet (pronounced / ˈ s t r eɪ n dʒ. l ɪ t /) is a hypothetical particle consisting of a bound state of roughly equal numbers of up, down, and strange quarks.An equivalent description is that a strangelet is a small fragment of strange matter, small enough to be considered a particle.The size of an object composed of strange matter could, …

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