dorsal/arxiv
View SchemaExperimental study of the Ca2 1S+1S asymptote
| Authors | O. Allard, C. Samuelis, A. Pashov, H. Knockel, E. Tiemann |
|---|---|
| Categories | |
| ArXiv ID | physics/0210029 |
| URL | https://arxiv.org/abs/physics/0210029 |
| DOI | 10.1140/epjd/e2003-00208-4 |
Abstract
The filtered laser excitation technique was applied for measuring transition frequencies of the Ca$_2$ B-X system from asymptotic levels of the X$^1\Sigma_{\mathrm g}^{+}$ ground state reaching $v''=38$. That level has an outer classical turning point of about 20~\AA which is only 0.2 \rcm below the molecular $^1$S$+^1$S asymptote. Extensive analysis of the spectroscopic data, involving Monte Carlo simulation, allowed for a purely experimental determination of the long range parameters of the potential energy curve. The possible values of the s-wave scattering length could be limited to be between 250$a_0$ and 1000$a_0$.
{
"annotation_id": "7867e287-d570-4604-9c8b-713d2cebaaae",
"date_created": "2026-03-02T18:00:39.372000Z",
"date_modified": "2026-03-02T18:00:39.372000Z",
"file_hash": "5fd23f5889f025ee0ec593a0a2ab6ad0b76aefb0507bb0529ffd52704af42c2d",
"private": false,
"record": {
"abstract": "The filtered laser excitation technique was applied for measuring transition\nfrequencies of the Ca$_2$ B-X system from asymptotic levels of the\nX$^1\\Sigma_{\\mathrm g}^{+}$ ground state reaching $v\u0027\u0027=38$. That level has an\nouter classical turning point of about 20~\\AA which is only 0.2 \\rcm below the\nmolecular $^1$S$+^1$S asymptote. Extensive analysis of the spectroscopic data,\ninvolving Monte Carlo simulation, allowed for a purely experimental\ndetermination of the long range parameters of the potential energy curve. The\npossible values of the s-wave scattering length could be limited to be between\n250$a_0$ and 1000$a_0$.",
"arxiv_id": "physics/0210029",
"authors": [
"O. Allard",
"C. Samuelis",
"A. Pashov",
"H. Knockel",
"E. Tiemann"
],
"categories": [
"physics.atom-ph",
"physics.chem-ph"
],
"doi": "10.1140/epjd/e2003-00208-4",
"title": "Experimental study of the Ca2 1S+1S asymptote",
"url": "https://arxiv.org/abs/physics/0210029"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "5dff648a-ff22-4251-b953-89f1b2c88c27",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}