University of Illinois Urbana-Champaign

Branching ratios, radiative lifetimes, and transition dipole moments for yboh

Augenbraun, Benjamin

Content Files
4386.pdf

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https://hdl.handle.net/2142/107325

Description

Title
Branching ratios, radiative lifetimes, and transition dipole moments for yboh
Author(s)
Augenbraun, Benjamin
Contributor(s)
  • Doyle, John M.
  • Lasner, Zack
  • Zhang, Chaoqun
  • Cheng, Lan
  • Steimle, Timothy
  • Le, Anh T.
  • Mengesha, Ephriem Tadesse
Issue Date
2020-06-22
Keyword(s)
Mini-symposium: Precision Spectroscopy for Fundamental Physics
Date of Ingest
2020-06-26T03:04:07Z
Abstract
Yb-containing molecules exhibit strongly enhanced sensitivity to physics beyond the Standard Model, including the symmetry-violating electron electric dipole moment (eEDM). Laser cooling and trapping are necessary in order to fully leverage this intrinsic sensitivity. To this end, we present medium resolution laser-induced fluorescence (LIF) excitation spectra of a rotationally cold sample of YbOH in the 17300-17950 cm$^{-1}$ range recorded using two-dimensional (excitation and dispersed fluorescence) spectroscopy. High resolution dispersed LIF (DLIF) spectra and radiative lifetimes of numerous bands detected in the medium resolution spectra are described. The vibronic energy levels of the $\tilde{X} \, ^2\Sigma^{+}$ state are predicted using a discrete variable representation approach and compared with observations. The DLIF spectra are analyzed to determine vibrational branching ratios and transition dipole moments, important determinants in the efficacy of laser cooling. Implications for laser cooling and trapping of YbOH are discussed.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
Text
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/107325
Copyright and License Information
Copyright 2020 is held by the Author(s)

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Abstracts & Presentations - 2020 International Symposium on Molecular Spectroscopy PRIMARY