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List of particles
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=== Bosons === [[Boson]]s are one of the two fundamental particles having integral spinclasses of particles, the other being [[fermion]]s. Bosons are characterized by [[Bose–Einstein statistics]] and all have integer spins. Bosons may be either elementary, like [[photons]] and [[gluons]], or composite, like [[mesons]]. According to the [[Standard Model]], the elementary bosons are: {| class="wikitable sortable" style="margin:1em auto; align: center; text-align: center;" ! Name !! Symbol !! Antiparticle !! Spin{{br}}{{bracket|[[reduced Planck constant|''ħ'']]}} !! Charge{{br}}{{bracket|[[elementary charge|''e'']]}} !! Mass<ref name="PDG2016" />{{br}}{{bracket|[[electronvolt|GeV]]/[[speed of light|''c'']]<sup>2</sup>}} !! Interaction mediated !!Observed |- | [[photon]] || {{math|γ}} || self || 1 || 0 || 0 || [[electromagnetism]] || {{yes|yes}} |- | [[W and Z bosons|W boson]] || {{Subatomic particle|W Boson-}} || {{Subatomic particle|W Boson+}} || 1 || ±1 || {{val|80.385|0.015}} || [[weak interaction]] || {{yes|yes}} |- | [[W and Z bosons|Z boson]] || {{Subatomic particle|Z Boson}} || self || 1 || 0 || {{val|91.1875|0.0021}} || [[weak interaction]] || {{yes|yes}} |- | [[gluon]] || {{Subatomic particle|Gluon}} || self || 1 || 0 || 0 || [[strong interaction]] || {{yes|yes}} |- | [[Higgs boson]] || {{Subatomic particle|Higgs boson}} || self || 0 || 0 ||{{val|125.09|0.24}} || [[mass]] || {{yes|yes}} |} The [[Higgs boson]] is postulated by the [[electroweak theory]] primarily to explain the origin of [[Mass|particle masses]]. In a process known as the "[[Higgs mechanism]]", the Higgs boson and the other gauge bosons in the Standard Model acquire mass via [[spontaneous symmetry breaking]] of the SU(2) gauge symmetry. The [[Minimal Supersymmetric Standard Model]] (MSSM) predicts several Higgs bosons. On 4 July 2012, the discovery of a new particle with a mass between {{val|125|and|127|u=GeV/c2}} was announced; physicists suspected that it was the Higgs boson. Since then, the particle has been shown to behave, interact, and decay in many of the ways predicted for Higgs particles by the Standard Model, as well as having even parity and zero spin, two fundamental attributes of a Higgs boson. This also means it is the first elementary scalar particle discovered in nature. Elementary bosons responsible for the four [[fundamental force]]s of nature are called [[Force carrier|force particles]] ([[gauge boson]]s). 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.
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