Testing CPT violation with correlated neutral mesons

Abstract

This work gives a general overview of phenomenology developed for neutral-meson searches for CPT violation in the framework of the Standard-Model Extension with focus on meson factories. It gives a comparison of notations and fundamental approach in the formalism used by the different experiments. Asymmetries and possible experimental investigations are presented for tests of the momentum-dependent phenomenological parameter of CPT violation in neutral-meson oscillations. The general results apply to any mesons produced as correlated meson pairs and addresses the issue of decoherence as a consequence of direction dependence. An analysis is given considering kinematics and orientation of the improved Belle II experiment.

12 pages, 2 figures Version 3 was updated with referee recommendations

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• Beta-Decay Spectrum and Lorentz Violation
• Lorentz and CPT Violation in Partons
• Quark-sector Lorentz violation in $Z$-boson production
• Novel correlated $D^0\overline{D}{}^0$ systems for $c/b$ physics and tests of $T/CPT$
• Dealing with T and CPT violations in mixing as well as direct and indirect CP violations for neutral mesons decaying to two vectors
• CPT Violation in ${\mathbf{B}}_{\mathbf{s}}^0$--${\bar{\mathbf{B}}}_{\mathbf{s}}^0$ mixing and the measurement of CP Violation in ${\mathbf{B}}_{\mathbf{s}}\to {\mathbf{K}}^{+}{\mathbf{K}}^{-}$
• New constraints on CPT symmetry violation in charm mesons