Yukawa coupling

E409824

The Yukawa coupling is a parameter in quantum field theory that quantifies the strength of interaction between a scalar field (such as the Higgs field) and a fermion, determining the fermion’s mass after symmetry breaking.

All labels observed (2)

Label Occurrences
Yukawa coupling canonical 2
Yukawa interaction 1

How this entity was disambiguated

Statements (50)

Predicate Object
instanceOf interaction strength ⓘ
parameter in quantum field theory ⓘ
physical constant ⓘ
appearsIn Grand Unified Theories ⓘ
Standard Model Effective Field Theory ⓘ
Standard Model of particle physics ⓘ
linked to: Standard Model

quantum field theory ⓘ
supersymmetric theories ⓘ
two-Higgs-doublet models ⓘ
associatedWith Dirac fermion fields ⓘ
Higgs mechanism ⓘ
scalar fields ⓘ
constrainedBy Higgs boson coupling measurements ⓘ
collider experiments ⓘ
dependsOn renormalization scale ⓘ
describes strength of interaction between a scalar field and a fermion ⓘ
electronYukawaOrderOfMagnitude about 10^-6 ⓘ
governs interaction between Higgs boson and fermions ⓘ
hasDomain high-energy physics ⓘ
particle physics ⓘ
theoretical physics ⓘ
hasMathematicalForm dimensionless coupling constant in four spacetime dimensions ⓘ
hasProperty can be complex in general ⓘ
can be different for each fermion species ⓘ
can lead to flavor mixing when non-diagonal in flavor space ⓘ
hasRole determines fermion mass after symmetry breaking ⓘ
hasUnit dimensionless in natural units ⓘ
historicalOrigin Yukawa’s theory of nuclear forces (Yukawa potential) ⓘ
linked to: Yukawa meson theory
implies fermion mass proportional to coupling strength times Higgs vacuum expectation value ⓘ
largestExample top quark Yukawa coupling ⓘ
namedAfter Hideki Yukawa ⓘ
relatedConcept gauge coupling ⓘ
quartic scalar coupling ⓘ
relatedTo CKM matrix ⓘ
PMNS matrix ⓘ
fermion flavor structure ⓘ
mass hierarchy of fermions ⓘ
relatesTo Higgs field ⓘ
electroweak symmetry breaking ⓘ
fermion masses ⓘ
spontaneous symmetry breaking ⓘ
smallestExamples electron Yukawa coupling ⓘ
neutrino Yukawa couplings in many models ⓘ
subjectTo renormalization group running ⓘ
symbol Y ⓘ
y ⓘ
topQuarkYukawaApproxValue approximately 1 at the electroweak scale ⓘ
usedFor calculating fermion production via Higgs exchange ⓘ
predicting Higgs boson decay rates to fermions ⓘ
usedIn Yukawa interaction term in the Lagrangian ⓘ

How these facts were elicited

Referenced by (3)

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

Yukawa potential → relatedConcept → Yukawa coupling ⓘ
Yukawa → hasDerivativeTerm → Yukawa interaction ⓘ
linked to: Yukawa coupling
Yukawa meson theory → couplingType → Yukawa coupling ⓘ