Angular correlation of photons in e+e- collision in QED: planar processes

The angular correlation for two monochromatic photons produced in e[sup +]e[sup [minus]] collision has been calculated to lowest order in the fine-structure constant in QED for planar processes. The angular correlation is defined as the average of the cosine of the angle between the directions of mo...

Full description

Saved in:
Bibliographic Details
Published in:International journal of theoretical physics 1994-02, Vol.33 (2), p.339-345
Main Authors: MANOUKIAN, E. B, UNGKITCHANUKIT, A
Format: Article
Language:English
Subjects:
ANGULAR CORRELATION
ANNIHILATION
BASIC INTERACTIONS
COLLISIONS
CORRELATIONS
ELECTRODYNAMICS
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELECTRON COLLISIONS
ELECTRON-POSITRON COLLISIONS
Exact sciences and technology
FIELD THEORIES
GAMMA RADIATION
INTERACTIONS
IONIZING RADIATIONS
PARTICLE INTERACTIONS
Physics
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
POSITRON COLLISIONS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
RADIATIONS 662310 > Weak & Electromagnetic Interactions of Leptons-- (1992-)
Specific calculations
Specific reactions and phenomenology
Specific theories and interaction models
particle systematics
The physics of elementary particles and fields
Weak and electromagnetic interactions of leptons
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The angular correlation for two monochromatic photons produced in e[sup +]e[sup [minus]] collision has been calculated to lowest order in the fine-structure constant in QED for planar processes. The angular correlation is defined as the average of the cosine of the angle between the directions of momenta of the two photons. This is done by computing, in the process, the e[sup +]e[sup [minus]]-spin-momentum-averaged, [gamma][gamma]-polarization-averaged conditional probability. In particular, the authors learn that for energies of the photons above a certain critical value, the angular correlation is strictly positive, for planar processes, indicating that the photons tend to travel in the same direction in a statistical sense for such processes.
ISSN:0020-7748
1572-9575
DOI:10.1007/BF00844975