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Title: Reexamination of the 0{sub g}{sup -} pure long-range state of Cs{sub 2}: Prediction of missing levels in the photoassociation spectrum

Abstract

A reexamination of the photoassociation spectrum of the external well of the 0{sub g}{sup -} potential of Cs{sub 2} converging to the (6s{sub 1} at {sub {approx}}{sub sol{approx}} at {sub 2}+6p{sub 3} at {sub {approx}}{sub sol{approx}} at {sub 2}) limit is performed, in order to resolve inconsistencies arising from a previously published paper [Phys. Rev. Lett. 85, 1408 (2000)]. We use the same analytical description of the potential as in an other previous analysis [Phys. Rev. A 66, 052506 (2002)], but we make a shift of 2 in the assignment of the observed vibrational lines. The agreement between experimental and calculated energy positions is improved and the intensities calculated using the new potential account well for all available data. The fitting procedure reveals a strong interdependence of the parameters of the model, which limits the accuracy of the determination of the radiative lifetimes of the 6p{sup 2}P{sub 1} at {sub {approx}}{sub sol{approx}} at {sub 2} and 6p{sup 2}P{sub 3} at {sub {approx}}{sub sol{approx}} at {sub 2} atomic levels. Only a more precise experimental study could allow one to improve the determination of these lifetime values.

Authors:
; ;  [1]
  1. Laboratoire Aime Cotton, CNRS, bat 505, Campus d'Orsay, 91400 Orsay (France)
Publication Date:
OSTI Identifier:
20982509
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.75.052501; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ALLOCATIONS; ATOMS; CESIUM; ELECTRONIC STRUCTURE; ENERGY LEVELS; FORECASTING; LIFETIME; PHOTOCHEMISTRY; PHOTON-MOLECULE COLLISIONS; POTENTIALS; SPECTRA; VIBRATIONAL STATES

Citation Formats

Bouloufa, Nadia, Crubellier, Anne, and Dulieu, Olivier. Reexamination of the 0{sub g}{sup -} pure long-range state of Cs{sub 2}: Prediction of missing levels in the photoassociation spectrum. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.052501.
Bouloufa, Nadia, Crubellier, Anne, & Dulieu, Olivier. Reexamination of the 0{sub g}{sup -} pure long-range state of Cs{sub 2}: Prediction of missing levels in the photoassociation spectrum. United States. doi:10.1103/PHYSREVA.75.052501.
Bouloufa, Nadia, Crubellier, Anne, and Dulieu, Olivier. Tue . "Reexamination of the 0{sub g}{sup -} pure long-range state of Cs{sub 2}: Prediction of missing levels in the photoassociation spectrum". United States. doi:10.1103/PHYSREVA.75.052501.
@article{osti_20982509,
title = {Reexamination of the 0{sub g}{sup -} pure long-range state of Cs{sub 2}: Prediction of missing levels in the photoassociation spectrum},
author = {Bouloufa, Nadia and Crubellier, Anne and Dulieu, Olivier},
abstractNote = {A reexamination of the photoassociation spectrum of the external well of the 0{sub g}{sup -} potential of Cs{sub 2} converging to the (6s{sub 1} at {sub {approx}}{sub sol{approx}} at {sub 2}+6p{sub 3} at {sub {approx}}{sub sol{approx}} at {sub 2}) limit is performed, in order to resolve inconsistencies arising from a previously published paper [Phys. Rev. Lett. 85, 1408 (2000)]. We use the same analytical description of the potential as in an other previous analysis [Phys. Rev. A 66, 052506 (2002)], but we make a shift of 2 in the assignment of the observed vibrational lines. The agreement between experimental and calculated energy positions is improved and the intensities calculated using the new potential account well for all available data. The fitting procedure reveals a strong interdependence of the parameters of the model, which limits the accuracy of the determination of the radiative lifetimes of the 6p{sup 2}P{sub 1} at {sub {approx}}{sub sol{approx}} at {sub 2} and 6p{sup 2}P{sub 3} at {sub {approx}}{sub sol{approx}} at {sub 2} atomic levels. Only a more precise experimental study could allow one to improve the determination of these lifetime values.},
doi = {10.1103/PHYSREVA.75.052501},
journal = {Physical Review. A},
number = 5,
volume = 75,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}