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High Energy Physics - Phenomenology

arXiv:hep-ph/0509126 (hep-ph)
[Submitted on 13 Sep 2005]

Title:Binary systems in QM and in QFT: CPT

Authors:V.A. Novikov
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Abstract: Quasi-degenerate neutral systems like a (K, \bar{K}) type are investigated in Quantum Field Theory (QFT). A constant mass matrix as the one used in Quantum Mechanics (QM) can only be introduced as a linear approximation to QFT. We study the phenomenological consequences of the differences between the QFT and QM treatments. The role of ``spurious'' states with zero norm at the poles is emphasized. The K_L-K_S mass splitting triggers a tiny difference between the CP violating parameters \epsilon_L and \epsilon_S, without any violation of TCP. Non-vanishing semi-leptonic asymmetry delta_S - \delta_L does not signal TCP violation (usual claims not withstanding), while A_{TCP} keeps vanishing when TCP is good symmetry.
Comments: 13 pages, LaTeX
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:hep-ph/0509126
  (or arXiv:hep-ph/0509126v1 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0509126

Submission history

From: Novikov [view email]
[v1] Tue, 13 Sep 2005 06:55:50 UTC (9 KB)
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