Angular distribution of two-photon positron annihilation in low energy positron scattering by the hydrogen molecular ion

Autor:	E A G Armour, J M Carr
Rok vydání:	1997
Předmět:	Physics Scattering Astrophysics::High Energy Astrophysical Phenomena Gamma ray Condensed Matter Physics Dihydrogen cation Atomic and Molecular Physics and Optics Momentum Positron Annihilation radiation Physics::Accelerator Physics Atomic physics Born approximation Wave function
Zdroj:	Journal of Physics B: Atomic, Molecular and Optical Physics. 30:1611-1618
ISSN:	1361-6455 0953-4075
Popis:	Calculations are carried out to determine the angular distribution of gamma rays resulting from positron annihilation when low-energy positrons are scattered by the hydrogen molecular ion. Angular distributions calculated using wavefunctions from a variational Kohn calculation are compared with those obtained using the Coulomb - Born approximation. The angular distribution function calculated with the most accurate wavefunction gives a half width half maximum value of 3.42 mrad for incident positrons with momentum .
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ea6c89800e3798994c24efeb14d0decb https://doi.org/10.1088/0953-4075/30/6/025 Zobrazit plný text záznamu