What type of study is this?

This is a Quantitative Study study.

September 29, 2025Open Access

Constraints on new vector boson mediated electron-nucleus interactions from spectroscopy of polar diatomic molecules

KGKonstantin GaulGSI Helmholtz Centre for Heavy Ion Research LCLei CongShanghai University DBDmitry BudkerGSI Helmholtz Centre for Heavy Ion Research

Key Points

New constraints are derived on vector boson mediated interactions from parity violation measurements.
Previous studies on hyperfine structure and atomic parity are reevaluated to yield novel interaction limits.
Future experiments aiming at heavy diatomic molecules may significantly enhance the detection of electron-nucleus interactions.
The work highlights the unexplored aspects of particle interactions beyond the Standard Model that could be pivotal for future research.

Abstract

A measurement of parity violation in the hyperfine structure of ^138Ba^19F E. Altuntas et al. Phys. Rev. Lett. 120, 142501 (2018) is reinterpreted with electronic structure calculations in terms of beyond Standard Model vector boson mediated electron-nucleus interactions. Our results set constraints on previously unexplored, new boson mediated axial vector-vector nucleus-electron interactions. Similar bounds are obtained by analyzing the atomic parity violation experiment with ^133Cs. Moreover, we show that future experiments with cold heavy diatomic molecules like ^225RaF can improve the present sensitivity to axial vector-vector nucleus-electron and nucleon-nucleus interactions by up to five orders of magnitudes.

KI fragen

Bookmark

View Full Paper