up quark
E674924
The up quark is a fundamental constituent of matter, a first-generation quark with a charge of +2/3e that, together with down quarks, forms protons and neutrons.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Standard Model particle
ⓘ
elementary particle ⓘ first-generation quark ⓘ quark ⓘ |
| baryonExamplesContaining |
neutron
ⓘ
proton ⓘ |
| baryonNumber | +1/3 ⓘ |
| belongsToQuarkFamily | up-type quark ⓘ |
| chargeConjugate | anti-up quark ⓘ |
| CKMPartners |
bottom quark
ⓘ
down quark ⓘ strange quark ⓘ |
| colorCharge | yes ⓘ |
| colorStates |
blue
ⓘ
green ⓘ red ⓘ |
| confinement | cannot be isolated as a free particle at low energies ⓘ |
| constituentOf |
neutron
ⓘ
proton ⓘ |
| discoveredIn | 1960s ⓘ |
| electricCharge |
+0.6666667 e
ⓘ
+2/3 e ⓘ |
| electricChargeInCoulombs | approximately +1.07e-19 C ⓘ |
| foundIn | atomic nuclei ⓘ |
| framework | quantum chromodynamics NERFINISHED ⓘ |
| generation | first generation ⓘ |
| hasAntiparticle | anti-up quark ⓘ |
| hasGenerationPartners | down quark ⓘ |
| isFundamental | true ⓘ |
| leptonNumber | 0 ⓘ |
| massOrdering | lightest quark ⓘ |
| massRangeMeV | about 2 to 3 MeV/c^2 ⓘ |
| massType | current quark mass ⓘ |
| mesonExamplesContaining |
pi-plus meson
ⓘ
pi-zero meson NERFINISHED ⓘ |
| participatesInInteraction |
electromagnetic interaction
ⓘ
gravitational interaction ⓘ strong interaction ⓘ weak interaction ⓘ |
| quarkContentExample |
neutron has one up quark and two down quarks
ⓘ
proton has two up quarks and one down quark ⓘ |
| roleInMatter | dominant constituent of ordinary baryonic matter ⓘ |
| spin | 1/2 ⓘ |
| statistics | Fermi–Dirac NERFINISHED ⓘ |
| symbol | u ⓘ |
| theorizedBy |
George Zweig
NERFINISHED
ⓘ
Murray Gell-Mann NERFINISHED ⓘ |
| weakHypercharge | +1/3 ⓘ |
| weakIsospin | +1/2 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.