Progress towards a nuclear Schiff moment measurement using TlF molecules in CeNTREX

The prevalence of matter over antimatter – the baryon asymmetry of the universe (BAU) - is an observation that cannot be explained by the Standard Models of particle physics and cosmology. Models aiming to explain the BAU typically require time-reversal symmetry violation at a level far exceeding that of the Standard Model. CeNTREX (Cold molecule Nuclear Time-Reversal EXperiment) is a molecular beam experiment utilizing the Ramsey method of separated oscillatory fields to investigate time-reversal symmetry-violating interactions that are associated with the Schiff moment of the ²⁰⁵Tl nucleus in thallium fluoride (TlF) molecules. This poster gives an overview of the current status of the experiment. We present measurements of the properties of the cryogenic buffer gas beam, and of rotational cooling of the molecular beam. We also discuss proposed state preparation and manipulation schemes for the experiment, which utilize microwave adiabatic passage and/or Rabi pulses. Progress on the main interaction region, including its high-voltage electrodes and magnetic shielding, is reported.