LHCb has collected the world's largest sample of charmed hadrons. This sample is used to measure the $D^0 -\overline{D}^0$ mixing, to search for rare decays and for $C\!P$ violation, and to perform precise measurements of properties and production of known charmed mesons and baryons. New measurements of several decay modes are presented, along with prospects for the sensitivity at the LHCb upgrades.
The Belle and Belle$~$II experiments have collected a $1.4~\mathrm{ab}^{-1}$ sample of $e^+e^-$ collision data at centre-of-mass energies near the $\Upsilon(nS)$ resonances. These samples contain a large number of $e^+e^-\to c\bar{c}$ events that produce charmed mesons. Direct $C\!P$ violation is searched for in $D^0\to K^0_{\rm S}K^0_{\rm S}$ decays and $D$-meson decays to a four-body final...
The 12 GeV Continuous Electron Beam Accelerator Facility (CEBAF) at JLab allows the study of J/ψ photoproduction and some higher-mass charmonium states at their thresholds, starting from 8.2 GeV. In this regime, the reaction amplitude is dominated by its real part (in contrast to the high-energy case) and contains important information about the interactions of the c-cbar pair with the proton...