A Dissertation Submitted to the
Faculty of Science
University of the Witwatersrand, Johannesburg
for the Degree of
Master of Science.
Johannesburg 1985 / The success of bag models In hadron physics seems to imply that
such models should be taken seriously as an approximation to QCD.
In this belief a two-centre harmonic oscillator " bag " is utilised
to describe kaon-proton scattering. An adiabatic approximation of
the resulting system leads to a coupled channels formulation of
the scattering problem .
Because of Its complexity a solution of the gluon coupling inside
a double-centred bag was not attempted; this turns out to be the
most important interaction term and is simply parametrised.
Even though all potentials are approximated by square wells and a
variety of other approximations are made, a fair fit to the
experimental phase shift data is obtained. It seems that the
" bare " masses of the unstable baryons differ appreciably from
positions of the experimental resonances .
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:wits/oai:wiredspace.wits.ac.za:10539/15906 |
| Date | 04 December 2014 |
| Creators | Barnard, Etienne |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | application/pdf |
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