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The updated results of the precise measurements of the processes e + e − → ρ → π + π − , e + e − → ω → π + π − π 0 and e + e − → φ → K 0 L K 0 S performed by the CMD-2 collaboration are presented. The update appeared necessary due an overestimate of the integrated luminosity in previous analyses.

The MEG (Mu to Electron Gamma) experiment has been running at the Paul Scherrer Institut (PSI), Switzerland since 2008 to search for the decay μ + → e + γ by using one of the most intense continuous μ + beams in the world. This paper presents the MEG components: the positron spectrometer, including a thin target, a superconducting magnet, a set of drift chambers for measuring the muon decay vertex and the positron momentum, a timing counter for measuring the positron time, and a liquid xenon detector for measuring the photon energy, position and time. The trigger system, the read-out electronics and the data acquisition system are also presented in detail. The paper is completed with a description of the equipment and techniques developed for the calibration in time and energy and the simulation of the whole apparatus.

In the original paper Phys. Rev. D 95, 052004 (2017), "Measurements of charm mixing and CP violation using D 0 → K AE π ∓ decays," the systematic uncertainties reported in Table II regarding the doubly tagged (DT) only result for ðx 0þ Þ 2 and y 0þ were swapped in both the "no direct CPV" and "all CPV allowed" fits. All other reported values are correct. The corrected table is shown below in Table II.