1982/10/14 by M. Chéret, M Cheret, L. Barbier +5 · 1 citation
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Cold Atom Physics and Bose-Einstein Condensates
paper · doi:10.1088/0022-3700/15/19/015
crossref issued 1982/10/14 · crossref published 1982/10/14 · crossref published-print 1982/10/14 · openalex publication_date 1982/10/14 · crossref published-online 1999/01/01 · crossref created 2002/07/26 · crossref deposited 2020/04/11 · openalex created_date 2025/10/10 · crossref indexed 2026/07/30 · openalex updated_date 2026/07/30
Highly excited and resonant states are created in a rubidium vapour in order to study the collisional ionisation with the ground state and between these different excited species. A mass analysis allows one to separate the atomic and molecular channels. Penning ionisation with a resonant state is shown to have a great efficiency (rate coefficient greater than 10 -8 cm 3 s -1 ) for all the highly excited levels under study (6d, 8s, 7d). The associative ionisation rate coefficient between these excited atoms and a ground-state atom lies in the expected range 10 -10 to 5*10 -10 cm 3 s -1 and seems to be independent of l j and values.