VACUUM-ULTRAVIOLET SPECTROSCOPY OF H- IN A HEAVY-ION STORAGE-RING - THE REGION NEAR THE H(N=2) THRESHOLD

Authors
BALLING P KRISTENSEN P ANDERSEN HH PEDERSEN UV PETRUNIN VV PRAESTEGAARD L HAUGEN HK ANDERSEN T
Citation
P. Balling et al., VACUUM-ULTRAVIOLET SPECTROSCOPY OF H- IN A HEAVY-ION STORAGE-RING - THE REGION NEAR THE H(N=2) THRESHOLD, Physical review letters, 77(14), 1996, pp. 2905-2908
Citations number
21
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
77
Issue
14
Year of publication
1996
Pages
2905 - 2908
Database
ISI
SICI code
0031-9007(1996)77:14<2905:VSOHIA>2.0.ZU;2-2
Abstract
The negative hydrogen ion has been investigated by a new spectroscopic approach in the region near the n = 2 threshold of the neutral hydrog en atom. The technique is based on Doppler-tuned spectroscopy using an H- beam stored in a heavy ion storage ring collinearly overlapped wit h a fixed-frequency narrow-bandwidth vacuum ultraviolet laser beam (11 8 nm). The position of the Feshbach resonance is determined as 10.9243 (3) eV which is in good agreement with recent theoretical calculations but deviates significantly from the previously reported experimental result.