2009/07/23 by Alexander L. Kagan, M. D. Sokoloff, Michael D. Sokoloff
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.80.076008
published as Phys.Rev.D80:076008,2009 · 15 pages, no figures
arxiv created 2009/07/23 · openalex publication_date 2009/10/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The two kinds of indirect CP violation in neutral meson systems are related, in the absence of new weak phases in decay. The result is a model-independent expression relating CP violation in mixing, CP violation in the interference of decays with and without mixing, and the meson mass and width differences. It relates the semileptonic and time-dependent CP asymmetries, and pairs of time-dependent CP asymmetries in D0 decays to non-CP eigenstates. CP violation in the interference of decays with and without mixing is related to the mixing parameters of relevance to model building: the off-diagonal mixing matrix elements |M12|, |\ensuremathΓ12|, and \ensuremathφ12\ensuremath≡arg(M12/\ensuremathΓ12). Incorporating this relation into a fit to the D0\ensuremath-D0 mixing data implies a level of sensitivity to |\ensuremathφ12D| of 0.10 (rad) at 1\ensuremathσ. The formalism is extended to include new weak phases in decay, and in \ensuremathΓ12. The phases are highly constrained by direct CP violation measurements. Consequently, the bounds on |\ensuremathφ12D| are not significantly altered, and the effects of new weak phases in decay could be difficult to observe at a high luminosity flavor factory (D0) or at the LHC (Bs) via violations of the above relations, unlike in direct CP violation.