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  2. Antiparticle - Wikipedia

    en.wikipedia.org/wiki/Antiparticle

    The opposite is also true: the antiparticle of the positron is the electron. Some particles, such as the photon, are their own antiparticle. Otherwise, for each pair of antiparticle partners, one is designated as the normal particle (the one that occurs in matter usually interacted with in daily life).

  3. Positron - Wikipedia

    en.wikipedia.org/wiki/Positron

    The positron or antielectron is the particle with an electric charge of +1e, a spin of 1/2 (the same as the electron), and the same mass as an electron.It is the antiparticle (antimatter counterpart) of the electron.

  4. List of particles - Wikipedia

    en.wikipedia.org/wiki/List_of_particles

    Elementary bosons responsible for the four fundamental forces of nature are called force particles (gauge bosons). The strong interaction is mediated by the gluon , the weak interaction is mediated by the W and Z bosons, electromagnetism by the photon, and gravity by the graviton, which is still hypothetical.

  5. Elementary particle - Wikipedia

    en.wikipedia.org/wiki/Elementary_particle

    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 .

  6. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    2. Denotes the additive inverse and is read as minus, the negative of, or the opposite of; for example, –2. 3. Also used in place of \ for denoting the set-theoretic complement; see \ in § Set theory. × (multiplication sign) 1. In elementary arithmetic, denotes multiplication, and is read as times; for example, 3 × 2. 2.

  7. Up quark - Wikipedia

    en.wikipedia.org/wiki/Up_quark

    The 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.

  8. Fermion - Wikipedia

    en.wikipedia.org/wiki/Fermion

    The Standard Model recognizes two types of elementary fermions: quarks and leptons. In all, the model distinguishes 24 different fermions. In all, the model distinguishes 24 different fermions. There are six quarks ( up , down , strange , charm , bottom and top ), and six leptons ( electron , electron neutrino , muon , muon neutrino , tauon and ...

  9. Quark - Wikipedia

    en.wikipedia.org/wiki/Quark

    A quark (/ k w ɔːr k, k w ɑːr k /) 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]