hadronic /ha dron"ik/, adj.
/had"ron/, n. Physics.
any elementary particle that is subject to the strong interaction. Hadrons are subdivided into baryons and mesons. Cf. quark.
[1962; < Gk hadr(ós) thick, bulky + -ON1]

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Any of the subatomic particles that are built from quarks and thus interact via the strong force.

The hadrons fall into two groups: mesons and baryons. Except for protons and neutrons, which are bound in nuclei, all hadrons have short lives and are produced in high-energy collision of subatomic particles. All hadrons are subject to gravitation; charged hadrons are subject to electromagnetic forces. Some hadrons break up by way of the weak force (as in radioactive decay); others decay via the strong and electromagnetic forces.

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      any member of a class of subatomic particles (subatomic particle) that are built from quarks (quark) and thus react through the agency of the strong force. The hadrons embrace mesons (meson), baryons (baryon) (e.g., protons (proton), neutrons (neutron), and sigma particles), and their many resonances (resonance). All observed subatomic particles are hadrons except for the gauge bosons (boson) of the fundamental interactions (fundamental interaction) and the leptons (lepton). Except for protons and neutrons that are bound in atomic nuclei, all hadrons have short lives and are produced in the high-energy collisions of subatomic particles. The other three basic forces of nature also affect hadron behaviour: all hadrons are subject to gravitation; charged hadrons obey electromagnetic laws; and some hadrons break up by way of the weak force (as in radioactive decay (radioactivity)), while others decay via the strong and the electromagnetic forces.

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Universalium. 2010.

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  • hádron — s. m. [Física] Partícula composta de quarks unidos por interação forte. • [Brasil] Plural: hádrones ou hádrons.   ‣ Etimologia: francês hadron   ♦ Grafia em Portugal: hadrão …   Dicionário da Língua Portuguesa

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