6533b855fe1ef96bd12b0947
RESEARCH PRODUCT
Flavor-changing decays of theZ0and leptoquarks
G. BelangerKarl SchilcherMichael A. DoncheskiHoward GrotchRichard Wallace RobinettPeter Moxhaysubject
PhysicsParticle decayParticle physicsBranching fractionHigh Energy Physics::PhenomenologyQuark modelYukawa potentialHigh Energy Physics::ExperimentElementary particleFermionBosonLeptondescription
Many extensions of the standard model, e.g., certain composite models and some superstring- inspired'' E{sub 6} models, contain new scalar matter fields which couple to both quarks and leptons, i.e., leptoquarks. We consider leptonic flavor-changing decays of the {ital Z}{sup 0}, e.g., {ital Z}{sup 0}{r arrow}{mu}{sup +}{tau}{sup {minus}}, due to one-loop diagrams involving such leptoquarks. We find branching ratios which are at most {approx}10{sup {minus}7}, even assuming generous values for unknown Yukawa couplings.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1989-10-01 | Physical Review D |