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Rho-Meson propagator at two-loop order in the Kroll-Lee-Zumino quantum field theory
The Kroll-Lee-Zumino theory, an Abelian renormalizable quantum field theory of charged pions and a neutral ρ meson, provides a framework to compute corrections to the tree-level Vector-Meson-Dominance model. Despite a large ρππ coupling (gρππ ≈ 5), the loop suppresion factor of 1=(4π)² helps give re...
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| Language: | English |
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Department of Physics
2017
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