Angular correlation of electrons and positrons in internal pair conversion

Journal Article · Sat Dec 01 04:00:00 EST 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.42.2632· OSTI ID:5987048

Hofmann, C; Reinhardt, J; Greiner, W ^[1]; Schlueter, P ^[2]; Soff, G ^[3]

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1. Institut fuer Theoretische Physik der J. W. Goethe Universitaet, Postfach 111 932, D-6000 Frankfurt am Main 11 (Germany)
2. Siemens Aktiengesellschaft, Zentralabteilung Forschung und Entwicklung, Postfach 830 953, D-8000 Muenchen 83 (Germany)
3. Gesellschaft fuer Schwerionenforschung, Planckstrasse 1, Postfach 110 552, D-6100 Darmstadt (Germany)

The angular distribution of electrons and positrons emitted in internal pair conversion is calculated. Coulomb-distorted waves are used as electron wave functions. Nuclear transitions of various multipolarities {ital L}{gt}0 and of magnetic (ML) and of electric (EL) type are considered as well as {ital E}0 conversion. Analytical expressions for the angular correlation are derived, which are evaluated numerically assuming a finite extension of the nucleus and, for the EL and ML conversion, also in the point-nucleus approximation. The calculated angular correlations are compared with results obtained within the Born approximation and, for the {ital E}0 case, with experimental data.

• OSTI ID: 5987048
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 42:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653005* -- Nuclear Theory-- Radioactive Decay
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
ANGULAR DISTRIBUTION
BORN APPROXIMATION
CORRELATIONS
COULOMB FIELD
DISTRIBUTION
E0-TRANSITIONS
EIGENFUNCTIONS
ELECTRIC FIELDS
ENERGY-LEVEL TRANSITIONS
FUNCTIONS
INTERACTIONS
INTERNAL PAIR PRODUCTION
MATRIX ELEMENTS
MULTIPOLE TRANSITIONS
PAIR PRODUCTION
PARITY
PARTICLE PROPERTIES
WAVE FUNCTIONS