Test of Time-Reversal Invariance Using the Mössbauer Transmission of the 73-keV Transition inIr193

Abstract
The real and imaginary parts of the E2M1 mixing ratio of the 73-keV transition in Ir193 have been determined in an arrangement that requires no correction for Faraday rotation. The values Reδ=+0.556±0.010 and Imδ=(+0.6±2.1)×103 result in a phase angle between E2 and M1 of η=(+1.1±3.8)×103, thus showing no evidence for T non-conservation.