Photoassociation spectroscopy of the B 1Π state of LiCs.

Authors :: Grochola, A.
Pashov, A.
Deiglmayr, J.
Repp, M.
Tiemann, E.
Wester, R.
Weidemüller, M.
Source :: Journal of Chemical Physics; 8/7/2009, Vol. 131 Issue 5, p054304, 6p, 1 Diagram, 1 Chart, 3 Graphs
Publication Year :: 2009
Abstract: We present an accurate potential energy curve of the B <superscript>1</superscript>Π state in the LiCs molecule for which vibrational levels between v<superscript>′</superscript>=0 and v<superscript>′</superscript>=35 (bound by 11.4 GHz) were measured by photoassociation spectroscopy in an ultracold ensemble of <superscript>7</superscript>Li and <superscript>133</superscript>Cs atoms. By the combination of conventional spectroscopic data of the B-X system and the new photoassociation measurements a very precise value of the dissociation energy of the ground state X <superscript>1</superscript>Σ<superscript>+</superscript> of LiCs was determined to be D<subscript>0</subscript>=5783.495(5) cm<superscript>-1</superscript>. [ABSTRACT FROM AUTHOR]