Positron Annihilation Characteristics in Superstrong Magnetic Fields

Sylwia Lewicka; Jerzy Dryzek

doi:10.4028/www.scientific.net/MSF.666.31

Paper Titles

The Distribution of Slowing-Down Times of Positrons Emitted from ²²Na and ⁶⁸Ge\⁶⁸Ga Isotopes into Metals
p.10

A Computational Model for Nano Scale Cavities in the Atomic Structure of Polymer Melt and Comparisons to PALS
p.15

Calculation of Gamma Spectra for Positron Annihilation on Molecules
p.21

Investigation of Resonances in the Scattering of a Heavy ‘Positron’ by H₂ that Involve Vibrationally Excited Quasi-Bound States
p.25

Positron Annihilation Characteristics in Superstrong Magnetic Fields
p.31

Structural Characterisation of Er Implanted, Ge-Rich SiO₂ Layers Using Slow Positron Implantation Spectroscopy
p.41

Defects in Martensitic Stainless Steel 1.4031 (EN) Exposed to Friction as Seen by Positron Annihilation
p.46

Point Defect Study in Fe₇₂Al₂₈ Alloy as a Function of Thermal Treatment by Positron Lifetime Spectroscopy
p.50

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Positron Annihilation Characteristics in Superstrong Magnetic Fields

Abstract:

The recent interest in positrons distribution in the space revealed the anomalous presence of high energetic positrons. There are different possible origins of such positrons, including the decay of heavy particles in the dark matter, also pulsars or neutron stars. In our study we calculated the annihilation properties of the electron – positron bound system in superstrong magnetic fields expected for neutron stars. For this aim we use solutions of the (relativistic) Bethe-Salpeter equation derived by L.B. Leinson and A. Perez [1]. The results indicate strong dependency of the annihilation properties (rate and intensity) on the value of the magnetic field.