Hyperfine structure and K-doubling in RaOCH₃ molecule

2025/08/11 by А. В. Петров, Petrov, Alexander
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic Physics (physics.atom-ph) #Atomic and Molecular Physics #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Quantum and Classical Electrodynamics

paper · pdf · doi:10.48550/arxiv.2508.07907

openalex publication_date 2025/08/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

RaOCH₃ molecule is one of the most sensitive systems for the electron electric dipole moment (eEDM) searches. Its hyperfine and K-doubling structure in the external electric field is of key importance for preparing and interpreting the experiment. We propose the method for calculation the symmetric top molecules and applied it for RaOCH₃. Hyperfine structure, K-doubling and sensitivity of the molecule to eEDM in the external electric field were calculated.

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