Treatment of Some High and Low Energy Hadronic Transitions in the Framework of Bethe-Salpeter Dynamical Programme for a Composite Hadron
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Date
2014-02
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Addis Ababa University
Abstract
In this thesis we employ Bethe Salpeter Equation(BSE) under Covariant Instanta-
neous Ansatz(CIA) to calculate: (A) The cross section of double Charmonium pro-
duction from electron-positron annihilation at the CM energy 10:6GeV through the
process e++e ! J= + c, which has recently been observed at B factories and whose
measurements were done by Babar and Belle groups. (B) The decay width for the ra-
diative decay of equal mass vector mesons through the process h ! h0 +
(h=vector
meson, h'=pseudoscalar meson and
=the emitted photon.) (C) Decay width for
strong decay of excited vector mesons through the process h ! h0 + h"(h=excited
vector meson, h'=vector meson and h"=pseudoscalar meson.) The calculated results
are in reasonable agreement with data
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Treatment of Some High and Low Energy