An alternative view of the Look Elsewhere Effect

The Look Elsewhere Effect, which influences the significance of a potentialsignal of a particle with a priori unknown mass, has a striking counterpart insearches for the presence of a modulation of unknown frequency in a time seriesof experimental data. In this work, the formulation of the problem in thefrequency domain is outlined and the methodology is illustrated using the timeseries data of the Super-Kamiokande solar neutrino experiment. The paral-lelismbetween the mass and frequency domains will be highlighted.