Angular correlation of electrons and positrons in internal pair conversion

  • 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 L>0 and of magnetic (ML) and of electric (EL) type are considered as well as E0 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 E0 case, with experimental data.

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Author:Christoph Hofmann, Joachim ReinhardtGND, Walter GreinerGND, Paul Schlüter, Gerhard SoffGND
Parent Title (German):Physical review C
Document Type:Article
Date of Publication (online):2006/07/07
Year of first Publication:1990
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/07/07
Page Number:14
First Page:2632
Last Page:2645
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht