Photoassociative spectroscopy of the Cs2 0-g long-range state
Anno: 1999
Autori: Fioretti A., Comparat D., Drag C., Amiot C., Dulieu O., Masnou-Seeuws F., Pillet P.
Affiliazione autori: Laboratoire Aimé Cotton, Université Paris-Sud, Bâtiment 505, 91405 Orsay Cedex, France
Abstract: The photoassociative spectroscopy of the Cs-2 0(g)(-) long-range molecular state dissociating into the 6s S-2(1/2) + 6p P-2(3/2) asymptote is performed, using cold cesium atoms in a vapor-cell magneto-optical trap (MOT). Vibrational levels from v= 0 to v = 132 are identified, and their rotational structure is well resolved up J = 8 for levels below v = 74. These data are analyzed in terms of the Rydberg-Klein-Rees (RKR) procedure, and correspond to 99.6% of an effective potential curve with a minimum at 12.36+/-0.05 Angstrom and a 77.94 +/- 0.01 cm(-1) depth. Both ab initio calculations and simple model estimations predict a double-well structure for this potential curve, which cannot be reproduced presently by the RKR approach but which is confirmed by the presence of giant structures in the spectrum. The 1(u)(6s S-2(1/2) + 6p P-2(3/2)) long-range state is also observed for the first time in Cs-2.
Giornale/Rivista: EUROPEAN PHYSICAL JOURNAL D
Volume: 5 (3) Da Pagina: 389 A: 403
Parole chiavi: Optical cooling of atoms; Molecular spectra; Innteratomic and intermolecular potentials and forcesDOI: 10.1007/s100530050271Citazioni: 121dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-10-27Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui