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The term " subatomic particle" is largely a retronym of the 1960s, used to distinguish a large number of baryons and mesons (which comprise hadrons) from particles that are now thought to be truly elementary. Before that hadrons were usually classified as "elementary" because their composition was unknown.
List of mesons. ) is a process that involves both weak and strong interactions. ). ). This list is of all known and predicted scalar, pseudoscalar and vector mesons. See list of particles for a more detailed list of particles found in particle physics. This article contains a list of mesons, unstable subatomic particles composed of one quark ...
Nucleons are the fermionic constituents of normal atomic nuclei: Protons, composed of two up and one down quark (uud) Neutrons, composed of two down and one up quark (ddu) Hyperons, such as the Λ, Σ, Ξ, and Ω particles, which contain one or more strange quarks, are short-lived and heavier than nucleons.
Hadron. A hadron is a composite subatomic particle. Every hadron must fall into one of the two fundamental classes of particle, bosons and fermions. In particle physics, a hadron (/ ˈhædrɒn / ⓘ; from Ancient Greek ἁδρός (hadrós) 'stout, thick') is a composite subatomic particle made of two or more quarks held together by the strong ...
The Large Hadron Collider (LHC), the world's largest atom smasher, just discovered at least two previously unknown particles. The 17-mile (27 kilometers) underground ring near Geneva recently ...
In particle physics, a meson (/ ˈmiːzɒn, ˈmɛzɒn /) is a type of hadronic subatomic particle composed of an equal number of quarks and antiquarks, usually one of each, bound together by the strong interaction. Because mesons are composed of quark subparticles, they have a meaningful physical size, a diameter of roughly one femtometre (10 ...
The Higgs boson, sometimes called the Higgs particle, [9][10] is an elementary particle in the Standard Model of particle physics produced by the quantum excitation of the Higgs field, [11][12] one of the fields in particle physics theory. [12] In the Standard Model, the Higgs particle is a massive scalar boson with zero spin, even (positive ...
The following article contains mild spoilers from the Season 2 premiere of Unstable, now streaming on Netflix. For a light-hearted workplace comedy, the first season of Netflix’s Unstable left ...