Absorption spectrum in the wings of the potassium second resonance doublet broadened by helium

Simple item page
dc.creatorShindo, François
dc.creatorBabb, James F.
dc.creatorKirby, Kate
dc.creatorYoshino, Kouichi
dc.date2007-06-11
dc.date.accessioned2026-07-07T08:14:28Z
dc.date.available2026-07-07T08:14:28Z
dc.descriptionWe have measured the reduced absorption coefficients occurring in the wings of the potassium 4S-5P doublet lines at 404.414 nm and at 404.720 nm broadened by helium gas at pressures of several hundred Torr. At the experimental temperature of 900 K, we have detected a shoulder-like broadening feature on the blue wing of the doublet which is relatively flat between 401.8 nm and 402.8 nm and which drops off rapidly for shorter wavelengths, corresponding to absorption from the X doublet Sigma+ state to the C doublet Sigma+ state of the K-He quasimolecule. The accurate measurements of the line profiles in the present work will sharply constrain future calculations of potential energy surfaces and transition dipole moments correlating to the asymptotes He-K(5p), He-K(5s), and He-K(3d).
dc.description2 figures
dc.identifierhttps://arxiv.org/abs/0706.1553
dc.identifierhttp://arxiv.org/abs/0706.1553
dc.identifierJ. Phys. B, 40 (2007), 2841-2846
dc.identifierdoi:10.1088/0953-4075/40/14/005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/133131
dc.subjectAtomic Physics
dc.subjectAstrophysics
dc.titleAbsorption spectrum in the wings of the potassium second resonance doublet broadened by helium
dc.typetext

Files

Collections

arXiv