Search for anomalous spin-dependent forces with a polarized-mass torsion pendulum

Abstract

A torsion pendulum experiment employing spin-polarized masses provides an upper limit for the strength of an anomalous interaction of the dipole-monopole form at ranges from 1 to 100 cm.Received 19 October 1992DOI:https://doi.org/10.1103/PhysRevLett.70.701©1993 American Physical Society