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David Owen
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Bethe-Salpeter Eq. for a Vector Meson-Scalar Meson Bound State
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It is shown explicitly how the Bethe-Salpeter
Equation can be used to describe the bound
state of a massive vector meson with a scalar
meson. Spontaneous symmetry breaking is taken
into account as needed.
The treatment relies on the form, created
by the aurhor, by which the inverse of the
Klein-Gordon propagator is linear in the
particle's 4-momentum and not quadratic.
This is vital in adopting the Bethe-Salpeter
Equation in which any of the constituent
particles have integer spin.
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