Experimental prospects to observe the g - 2 Muon anomaly in the electron sector

The long-standing difference between the experimental measurement and the standard model prediction for the muon's anomalous magnetic moment, a<inf>μ</inf> = (g<inf>μ</inf> - 2)/2, can be due to new particles flowing in loop contributions: such discrepancy might thus signal the presence of new physics at the TeV scale. The vast majority of models explaining the muon discrepancy in terms of new physics (NP) predict sizable effects in a<inf>e</inf> = (g<inf>e</inf> - 2)/2, too. We discuss the experimental prospects to reach sub-ppb precision on a<inf>e</inf> and test the NP origin of the muon anomaly in its electron counterpart.