Two body loss rate in a magneto-optical trap of metastable He

Authors
Browaeys, A Poupard, J Robert, A Nowak, S Rooijakkers, W Arimondo, E Marcassa, L Boiron, D Westbrook, CI Aspect, A
Citation
A. Browaeys et al., Two body loss rate in a magneto-optical trap of metastable He, EUR PHY J D, 8(2), 2000, pp. 199-203
Citations number
14
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL D
ISSN journal
14346060 → ACNP
Volume
8
Issue
2
Year of publication
2000
Pages
199 - 203
Database
ISI
SICI code
1434-6060(200002)8:2<199:TBLRIA>2.0.ZU;2-R
Abstract
We have measured the two body loss rate in a magneto-optical trap containin g triplet metastable He atoms. Mie find a rate constant beta = 3 x 10(-8) c m(3)/s at a -8 MHz detuning, with an uncertainty of a factor 2. This measur ement is in disagreement with a recent experiment which measures the absolu te, ion-producing collision rate, but agrees with several other published m easurements.