Abstract
The neutral kaon system is used to test the quantum theory of resonance scattering and decay phenomena. The two dimensional Lee-Oehme-Yang theory with complex Hamiltonian is obtained by truncating the complex basis vector expansion of the exact theory in rigged Hilbert space. This can be done forK 1 andK 2 as well as forK S andK L , depending upon whether one chooses the (self-adjoint, semibounded) Hamiltonian as commuting or noncommuting withCP. As an unexpected curiosity, one can show that the exact theory (without truncation) predicts long-time 2π decays of the neutral kaon system even if the Hamiltonian conservesCP.
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Bohm, A. Irreversible quantum mechanics in the neutralK-system. Int J Theor Phys 36, 2239–2269 (1997). https://doi.org/10.1007/BF02768924
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DOI: https://doi.org/10.1007/BF02768924