SUB-PERMILLE MEASUREMENTS AND CALCULATIONS OF 3-0 BAND CO LINE INTENSITIES

Reed, Zachary

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https://hdl.handle.net/2142/116740 Copy

Description

Title

SUB-PERMILLE MEASUREMENTS AND CALCULATIONS OF 3-0 BAND CO LINE INTENSITIES

Author(s)

Reed, Zachary

Contributor(s)

Polyansky, Oleg L.; Tennyson, Jonathan ; Ebert, Volker ; Zobov, Nikolay F.; Lodi, Lorenzo ; Hodges, Joseph T.; Adkins, Erin M.; Lisak, Daniel ; Ciurylo, Roman ; Cygan, Agata ; Li, Gang ; Kyuberis, Aleksandra A.; Bielska, Katarzyna

Issue Date

2022-06-22

Keyword(s)

Mini-symposium: Benchmarking in Spectroscopy

Abstract

Here we present new measurements and calculations of line intensities in the 3 - 0 band of $^{12}$C$^{16}$O. These experimental results and calculations exhibit unprecedented consistency and low uncertainty. Calibration-free agreement at the 1 permille level relative standard deviation level has been demonstrated between theoretical ab initio calculations and three sets of independent experiments, corresponding to a nearly twenty-fold reduction in uncertainty by comparison to literature values. The experimental techniques cover a broad range of rotational quantum numbers from J = 5 to 30, including three separate laser-based measurements of high-J lines performed at two institutions, along with independent Fourier transform spectroscopy measurements for J = 5 to 18. The most accurately determined intensity is that of the R23 transition determined to within 0.4 permille. The intensity of this transition is a possible intrinsic reference for evaluating and reducing biases in future spectroscopic determinations of molecular line intensities.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Handle URL

https://hdl.handle.net/2142/116740

Copyright and License Information

Copyright 2022 held by the authors

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