Electron-positron pair creation with capture and ionization in relativistic heavy-ion collisions by the finite-difference method

Journal Article · Tue Sep 01 04:00:00 EDT 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.46.2607· OSTI ID:7026747

Thiel, J; Bunker, A; Momberger, K; Gruen, N; Scheid, W ^[1]

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1. Institut fuer Theoretische Physik der Justus-Liebig-Universitaet, Giessen (Germany)

The probabilities of electron-positron pair creation with {ital K}-shell capture, of ionization, and of excitation are nonperturbatively calculated with a finite-difference method. Calculations for a collision of U{sup 92+} on U{sup 91+} at {ital E}{sub lab}=10 GeV/nucleon at small impact parameters are presented. The results show an enhancement of the probability for pair creation with the capture of about two orders of magnitude in comparison to the outcome of a calculation in first-order perturbation theory. This proves the expected strong nonperturbative character of such relativistic collisions for very heavy ions.

• OSTI ID: 7026747
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 46:5; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ATOMIC NUMBER
CAPTURE
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
ELECTRON CAPTURE
ELECTRON-POSITRON INTERACTIONS
ELECTRONIC STRUCTURE
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FINITE DIFFERENCE METHOD
GEV RANGE
GEV RANGE 01-10
HEAVY ION REACTIONS
INTERACTIONS
IONIZATION
IONS
ITERATIVE METHODS
K SHELL
LEPTON-LEPTON INTERACTIONS
LEPTONS
MULTICHARGED IONS
NUCLEAR REACTIONS
NUMERICAL SOLUTION
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
RELATIVISTIC RANGE
URANIUM IONS