Tenfold improvement of limits on T violation in thallium fluoride

D. Cho, K. Sangster, E. A. Hinds

Research output: Contribution to journalArticlepeer-review

112 Citations (Scopus)


We have made a stringent test of time-reversal symmetry using nuclear-spin resonance in a rotationally cold, supersonic beam of thallium fluoride molecules. We searched for a shift of the 120-kHz thallium spin resonance when a 29.5 kV/cm external electric field was reversed relative to the nuclear spin and found this to be (1.4±2.4)×10-4 Hz. This is a tenfold improvement over our previous measurement in thallium fluoride. The derived constraints on the proton and electron electric dipole moments and on T violation in both strong and weak interactions are correspondingly improved.

Original languageEnglish
Pages (from-to)2559-2562
Number of pages4
JournalPhysical review letters
Issue number23
Publication statusPublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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