Tenfold Improvement of Limits on $T$ Violation in Thallium Fluoride

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.

time reversal: violation
thallium: fluorine
spin: resonance
p: electric moment
electron: electric moment
experimental results

References(15)

Figures(0)

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Tenfold Improvement of Limits on TTT Violation in Thallium Fluoride

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Tenfold Improvement of Limits on $T$ Violation in Thallium Fluoride