CPT transformation properties of the exact effective Hamiltonian for neutral kaon and similar complexes

Details CPT transformation properties of the exact effective Hamiltonian for neutral kaon and similar complexes CPT transformation properties of the exact effective Hamiltonian for neutral kaon and similar complexes

1998-03-18

arxiv.org/abs/hep-ph/9803376v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex2e, 32 pages

Scientific paper

CPT-symmetry properties of the exact effective Hamiltonian H(eff) governing the time evolution in the K(0), K(O)-bar (neutral K mesons) subspace implied by such properties of the total Hamiltonian of the system under consideration are examined. We show that H(eff) can commute with CPT - operator only if H does not commute with it. We also find that, in contradistinction to the standard result of the Lee-Oehme-Yang (LOY) theory, Re. = Re., i.e., ( - ) = 0, only if the total system does not preserve CPT-symmetry. Using more accurate approximation than Weisskopf-Wigner approximation, an estimation of the difference ( - ) is found for CPT-invariant generalized Fridrichs-Lee model.

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