Speaker: Yuval Shagam Technion

 

Title : Toward precision spectroscopy of CHDBrI+ in search of parity violation

 

Abstract: The weak force is predicted to break the parity symmetry between left and

right-handed chiral molecules, but so far the effect has eluded detection. We

are developing a trapped chiral molecular ion version of the search for parity violation (PV). Our candidate molecule, CHDBrI+ is predicted to be preparable via state-selective ionization [1] and to exhibit a large PV shift of a few Hz for the C-H bend vibrational transition, where the transition’s natural linewidth is narrower than the shift [2].

We will discuss the status of the experiment including our plan for chirality-resolved differential vibrational spectroscopy [3] and our ion trap that is integrated with a pulsed velocity map imaging detector for internal state

population detection of the molecules.

Additionally, we will discuss the advantages chiral molecules have in searches for new physics in hypothetical nucleon-nucleon interactions that are P-odd [4].

 

[1] Landau et al. J. Chem. Phys. 159, 114307 (2023)

[2] Eduardus et al. Chem. Commun., 59, 14579 (2023)

[3] Erez et al. Phys. Rev. X 13, 041025 (2023)

[4] Baruch et al. arXiv:2406.02281, (2024)

More Details will provide soon