Signatures of a minimal length scale in high precision experiments

Abstract

We discuss modifications of the gyromagnetic moment of electrons and muons due to a minimal length scale combined with a modified fundamental scale $M_f$. First-order deviations from the theoretical standard model value for $g-2$ due to these String Theory-motivated effects are derived. A constraint of $M_f>577GeV$ for the new fundamental scale is given.

Comments: Proceedings of the Nuclear Physics Winter Meeting 2004, Bormio, Italy