Gaussian band 

https://doi.org/10.1351/goldbook.08252
Spectral band with the shape HGexp⁡[−4ln⁡2(ν~−ν~0)2/W2], where HG is the band maximum (peak height), W is the full width at half maximum, and ν~0 is the peak wavenumber.
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 660 [Terms] [Paper]
Citation: 'Gaussian band' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08252 RIS BibTex EndNote
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