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Mesons

💡 Words with a Similar Meaning to "Mesons"

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WordDefinition
mesotronnoun(physics, dated) meson
jrnounInitialism of Japan Railways.
pseudoscalarnoun(physics) A quantity that behaves like a scalar, but changes sign under a parity inversion
baryonnoun(particle physics) A heavy subatomic particle created by the binding of quarks by gluons; a hadron containing three quarks. Baryons have half-odd integral spin and are thus fermions. This category includes the common proton and neutron of the atomic nucleus.
strange quarknoun(particle physics) A quark having a fractional electric charge of -1/3 and a mass of about 80 to 130 MeV.
antiparticlenoun(particle physics) A subatomic particle corresponding to another particle with the same mass, spin and mean lifetime but with charge, parity, strangeness and other quantum numbers flipped in sign; a particle that has a reversed world line to another.
nucleonsnounA proton (uud) or a neutron (udd).
hadronnoun(particle physics) A composite particle that comprises two or more quarks held together by the strong force and (consequently) can interact with other particles via said force; a meson or a baryon.
positronsnoun(particle physics) The antimatter equivalent of an electron, having the same mass but a positive charge.
leptonsnoun(proscribed) Alternative form of lepton. [A coin used since ancient times in Greece, serving in modern times as one hundredth of a phoenix, a drachma, and a euro (as the Greek form of the Eurocent).]
muonsnoun(physics) An unstable elementary particle in the lepton family, having similar properties to the electron but with a mass 207 times greater.
antineutrinosnoun(particle physics) The antiparticle of the neutrino.
fermionnoun(particle physics, Standard Model) Any elementary or composite particle that has half-integer spin and thus obeys Fermi–Dirac statistics and the Pauli exclusion principle (equivalently, a particle for which the wavefunction of any system of identical such particles changes sign whenever two are swapped); a baryon, a lepton or a quark;
charm quarknoun(particle physics) A quark having a fractional electric charge of +2/3 and a mass of about 1150 to 1350 MeV.
antiquarknoun(particle physics) The antiparticle of a quark.
bosonsnoun(particle physics) A particle with totally symmetric composite quantum states, which exempts them from the Pauli exclusion principle, and that hence obeys Bose-Einstein statistics. They have integer spin. Among them are many elementary particles, and some (gauge bosons) are known to carry the fundamental forces. Compare fermion.
nucleinoun(chemistry, physics) The massive, positively charged central part of an atom, made up of protons and neutrons.
antiprotonsnoun(physics) The antiparticle of the proton, having a negative electric charge.
dipolarnoun(physics) Having north and south magnetic poles.
gluonnoun(particle physics) A massless gauge boson that binds quarks together to form baryons, mesons and other hadrons and is associated with the strong nuclear force.

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