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RESEARCH PRODUCT
Polarization effects in exclusive semi-leptonic Λc and Λb charm and bottom baryon decays
M. KrämerJ. G. Körnersubject
PhysicsNuclear and High Energy PhysicsParticle physicsmedia_common.quotation_subjectNuclear TheoryHigh Energy Physics::PhenomenologyElementary particlePolarization (waves)AsymmetryBaryonNuclear physicsParticle scatteringHeavy quark effective theoryHigh Energy Physics::ExperimentAngular dependenceNuclear ExperimentLeptonmedia_commondescription
Abstract We discuss polarization effects in semi-leptonic decays of polarized and unpolarized heavy Λ-type baryons into heavy and into light Λ-type baryons. We use the non-leptonic decay of the daughter baryon and the leptonic decay of the Woff-shell into a lepton pair as polarization analyzers to analyze the polarization of the daughter baryon and the Woff-shell. Technically this is done by writing down joint angular decay distributions. We calculate the values of the various asymmetry parameters that characterize the angular dependence of the angular decay distributions where we use the predictions of the heavy quark effective theory (HQET) supplemented by simple ansatze for the q2-dependence of the form factors.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1992-01-01 | Physics Letters B |