V–A theory

E400603

V–A theory is a framework in particle physics that describes the weak interaction as involving only left-handed particles and right-handed antiparticles through a combination of vector (V) and axial-vector (A) currents.

All labels observed (1)

Label Occurrences
V–A theory canonical 1

How this entity was disambiguated

Statements (46)

Predicate Object
instanceOf theory in particle physics ⓘ
weak interaction theory ⓘ
appliesTo beta decay ⓘ
muon decay ⓘ
neutron decay ⓘ
nuclear beta processes ⓘ
chiralitySelection left-handed particles ⓘ
right-handed antiparticles ⓘ
compatibleWith Standard Model of particle physics ⓘ
linked to: Standard Model
couplingType universal weak coupling constant ⓘ
currentStructure vector minus axial-vector ⓘ
describes weak interaction ⓘ
excludes left-handed weakly interacting antiparticles ⓘ
right-handed weakly interacting particles ⓘ
explains maximal parity violation ⓘ
parity violation in weak interactions ⓘ
field particle physics ⓘ
formalism four-fermion interaction at low energies ⓘ
historicalContext developed in late 1950s ⓘ
implies only left-handed neutrinos participate in weak interaction ⓘ
only right-handed antineutrinos participate in weak interaction ⓘ
includesCurrent axial-vector current ⓘ
vector current ⓘ
inspired development of gauge theory description of weak interaction ⓘ
interactionType charged-current weak interaction ⓘ
involves hadronic weak currents ⓘ
leptonic weak currents ⓘ
mathematicalForm V − A combination of currents ⓘ
motivatedBy experimental discovery of parity violation ⓘ
predecessorOf electroweak theory ⓘ
proposedBy E. C. G. Sudarshan ⓘ
Murray Gell-Mann ⓘ
Richard Feynman ⓘ
Robert Marshak ⓘ
relatedTo Fermi coupling constant ⓘ
linked to: Fermi constant

Fermi theory of beta decay ⓘ
roleInStandardModel low-energy limit of charged-current weak interaction ⓘ
status experimentally well confirmed ⓘ
symmetryProperty violates charge–parity (CP) approximately conserved in charged current alone ⓘ
violates parity symmetry ⓘ
testedBy beta decay experiments ⓘ
muon decay experiments ⓘ
neutrino scattering experiments ⓘ
usesConcept Dirac spinors ⓘ
chiral projection operators ⓘ
weak charged current ⓘ

How these facts were elicited

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.