D0– mixing: recent experimental results and intriguing prospects

A summary of the present experimental limits on quantities related to D0– mixing is presented, with an emphasis on techniques that may achieve sensitivity to aspects of this phenomenon in the near future. The most stringent constraints on D-mixing parameters to date have been obtained by analyzing the decays D0→K+π−, where the time-integrated rate has been determined to be RM<0.04% with 95% confidence. In the future, analyses of interference effects may be able to distinguish the contributions from x and y to the mixing rate.