6533b835fe1ef96bd129fe9f
RESEARCH PRODUCT
Restrictions for asymmetry and polarizations of recoil in muon capture
Jose Bernabeusubject
PhysicsDensity matrixNuclear and High Energy PhysicsParticle physicsmedia_common.quotation_subjectFísicaPolarization (waves)HelicityAsymmetryMuon captureNuclear physicsRecoilRotational invarianceHigh Energy Physics::ExperimentNeutrinomedia_commonNuclear Physicsdescription
Abstract Using the helicity formalism, we discuss muon capture by targets of spin-zero. Owing to the definite neutrino helicity, three independent observables define a complete experiment. The precise relation between asymmetry α and longitudinal polarization P L of recoil, α = 1 + 2 jP L , comes only from rotational invariance. When time-reversal invariance is inserted, there is an additional restriction between the average polarization P av and the longitudinal polarization P L . On the basis of the experimental result P av = 0.43 ± 0.10 for 12 C, we predict P L = −(0.99 +0.01 −0.04 .
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1975-02-01 |