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D QUARK [1 record]

Record 1 2025-05-12

English

Subject field(s)
  • Atomic Physics
  • Relativity (Physics)
DEF

A quark with an electric charge of -1/3, baryon number of 1/3, and 0 strangeness and charm.

CONT

As discovered in electron-nucleon scattering, the up and down quarks together carry about half of the proton's total momentum.

French

Domaine(s)
  • Physique atomique
  • Relativité (Physique)
CONT

Ils possèdent, par exemple, des charges fractionnaires : -1/3 pour les quarks d, s, b et +2/3 pour les quarks u, c, t [...]

Spanish

Campo(s) temático(s)
  • Física atómica
  • Relatividad (Física)
CONT

El electrón es el leptón cargado más ligero y se asocia, por tanto, con los quarks más ligeros, el quark u (o quark arriba) y el quark d (o quark abajo).

OBS

cuark abajo: La Fundación del Español Urgente (Fundéu BBVA), con el asesoramiento de la Real Academia Española, indica que aunque puede haber algunas variaciones, los seis "cuarks" postulados y detectados por los físicos reciben los nombres de "arriba", "abajo", "encanto", "extraño", "cima" y "fondo", que permanecen invariables en aposición: los "cuarks arriba". Las formas españolas, ampliamente usadas, son preferibles a las inglesas "up", "down", "charm", "strange", "top" y "bottom".

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