dorsal/arxiv
View SchemaPenning collisions of laser-cooled metastable helium atoms
| Authors | F. Pereira Dos Santos, F. Perales, J. Leonard, A. Sinatra, Junmin Wang, F. S. Pavone, E. Rasel, C. S. Unnikrishnan, M. Leduc |
|---|---|
| Categories | |
| ArXiv ID | physics/0103063 |
| URL | https://arxiv.org/abs/physics/0103063 |
| DOI | 10.1007/s100530170228 |
Abstract
We present experimental results on the two-body loss rates in a magneto-optical trap of metastable helium atoms. Absolute rates are measured in a systematic way for several laser detunings ranging from -5 to -30 MHz and at different intensities, by monitoring the decay of the trap fluorescence. The dependence of the two-body loss rate coefficient $\beta$ on the excited state ($2^3P_2$) and metastable state ($2^3S_1$) populations is also investigated. From these results we infer a rather uniform rate constant $K_{sp}=(1{\pm}0.4)\times10^{-7}$ cm$^3$/s.
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"date_created": "2026-03-02T18:00:35.519000Z",
"date_modified": "2026-03-02T18:00:35.519000Z",
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"abstract": "We present experimental results on the two-body loss rates in a\nmagneto-optical trap of metastable helium atoms. Absolute rates are measured in\na systematic way for several laser detunings ranging from -5 to -30 MHz and at\ndifferent intensities, by monitoring the decay of the trap fluorescence. The\ndependence of the two-body loss rate coefficient $\\beta$ on the excited state\n($2^3P_2$) and metastable state ($2^3S_1$) populations is also investigated.\n From these results we infer a rather uniform rate constant\n$K_{sp}=(1{\\pm}0.4)\\times10^{-7}$ cm$^3$/s.",
"arxiv_id": "physics/0103063",
"authors": [
"F. Pereira Dos Santos",
"F. Perales",
"J. Leonard",
"A. Sinatra",
"Junmin Wang",
"F. S. Pavone",
"E. Rasel",
"C. S. Unnikrishnan",
"M. Leduc"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1007/s100530170228",
"title": "Penning collisions of laser-cooled metastable helium atoms",
"url": "https://arxiv.org/abs/physics/0103063"
},
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