Polarization effects in the decay of the /sup 4/He/sub. lambda. / and /sup 3/H/sub. lambda. / hypernuclei

Journal Article · Wed May 01 00:00:00 EDT 1985 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6446112

Lyul'ka, V A

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), Vol. 41:5
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
HELIUM 4
HYPERNUCLEI
DECAY
TRITIUM
DEUTERIUM
HELIUM 3
PHASE SHIFT
PIONS MINUS
POLARIZATION
PROTONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BOSONS
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
HADRONS
HELIUM ISOTOPES
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
MESONS
NUCLEAR FRAGMENTS
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PIONS
PSEUDOSCALAR MESONS
RADIOISOTOPES
STABLE ISOTOPES
YEARS LIVING RADIOISOTOPES
651212* - Nuclear Properties & Reactions
A=1-5
Theoretical- Radioactive Decay- (-1987)