Calculations on production reactions using the absorptive peripheral model
Donohue, John Thomas
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https://hdl.handle.net/2142/25688
Description
Title
Calculations on production reactions using the absorptive peripheral model
Author(s)
Donohue, John Thomas
Issue Date
1967
Doctoral Committee Chair(s)
Jackson, J.D.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
absorption peripheral model
production and decay angular distributions
high energy collisions
two body mesons
partial wave summation method
Language
en
Abstract
We present calculations for the production and decay angular
distributions of resonances produced in high energy collisions. The
peripheral model with absorption is used in the calculations;
only two body meson induced reactions are treated. A comparison
between the partial wave summation method~ which is used here, and
the earlier impact parameter formalism is given.
The reaction K p -> K*N is treated in detail, as both
pseudoscalar and vector meson exchanges appear to be important.
The possibility of determining the signs of coupling constants
from a study of these reactions is discussed. Reactions in which
two resonances are produced are analyzed for correlations between
the decay angles of the resonances ~ and absorption model predictions
for these correlations are compared with experiment.
The problem of measuring the branching ratio for the decay
po -> e+e- is discussed, first generally and then using absorption
model predictions to estimate the effect of the omega -> e+e- decay mode.
The exchange of baryons is treated in an attempt to understand
the small backward peaks in differential cross sections for some
reactions. Absorption model predictions are found to be unreliable
for these reactions.
The details of the partial wave summation formalism for
the exchange of mesons and baryons in meson induced reactions are
given in the Appendices.
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