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The Yukawa Lagrangian Density is Inconsistent with the Hamiltonian

E. Comay
Year: 2007 Pages: 11
Keywords: Yukawa field, Hamiltonian.
It is proved that no Hamiltonian exists for the real Klein-Gordon field used in the Yukawa interaction. It is also shown that a real Klein-Gordon particle can be neither in a free isolated state nor in a bound state having an angular momentum l > 0. The experimental data support these conclusions. This outcome is in a complete agreement with Dirac's negative opinion on the Klein-Gordon equation.