Polarization effects in the decay of the /sup 4/He/sub. lambda. / and /sup 3/H/sub. lambda. / hypernuclei
Journal Article
·
· Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:6446112
The /sup A/X/sub ..lambda../..-->../sup A/-1X+p+..pi../sup -/ decays of the hypernuclei /sup 4/He/sub ..lambda../ and /sup 3/H/sub ..lambda../ are examined and the polarization of the particles produced is studied. For the decay of /sup 4/He/sub ..lambda../ a realistic model for inclusion of the p--/sup 3/He interaction is developed; the model makes use of the p/sup 3/He scattering phase shifts calculated taking into account the noncentral forces. It is shown that the strong interaction in the p-/sup 3/He system largely determines the polarization of the protons and /sup 3/He nuclei in /sup 4/He/sub ..lambda../..-->../sup 3/He+p+..pi../sup -/ decays. Existence of a specific mechanism of polarization of recoil nuclei with nonzero spins in hypernucleus decays is pointed out. Polarization effects in leptonic decays of /sup 3/H/sub ..lambda../ are also discussed briefly.
- Research Organization:
- I. V. Kurchatov Atomic Energy Institute
- OSTI ID:
- 6446112
- Journal Information:
- Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 41:5; ISSN SJNCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651212* -- Nuclear Properties & Reactions
A=1-5
Theoretical-- Radioactive Decay-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BOSONS
DECAY
DEUTERIUM
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
HADRONS
HELIUM 3
HELIUM 4
HELIUM ISOTOPES
HYDROGEN ISOTOPES
HYPERNUCLEI
ISOTOPES
LIGHT NUCLEI
MESONS
NUCLEAR FRAGMENTS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PHASE SHIFT
PIONS
PIONS MINUS
POLARIZATION
PROTONS
PSEUDOSCALAR MESONS
RADIOISOTOPES
STABLE ISOTOPES
TRITIUM
YEARS LIVING RADIOISOTOPES
A=1-5
Theoretical-- Radioactive Decay-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BOSONS
DECAY
DEUTERIUM
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
HADRONS
HELIUM 3
HELIUM 4
HELIUM ISOTOPES
HYDROGEN ISOTOPES
HYPERNUCLEI
ISOTOPES
LIGHT NUCLEI
MESONS
NUCLEAR FRAGMENTS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PHASE SHIFT
PIONS
PIONS MINUS
POLARIZATION
PROTONS
PSEUDOSCALAR MESONS
RADIOISOTOPES
STABLE ISOTOPES
TRITIUM
YEARS LIVING RADIOISOTOPES