Formation of ultracold dipolar molecules in the lowest vibrational   levels by photoassociation
  We recently reported the formation of ultracold LiCs molecules in the rovibrational ground state X1Sigma+,v''=0,J''=0 [J. Deiglmayr et al., PRL 101, 133004 (2008)]. Here we discuss details of the experimental setup and present a thorough analysis of the photoassociation step including the photoassociation line shape. We predict the distribution of produced ground state molecules using accurate potential nergy curves combined with an ab-initio dipole transition moment and compare this prediction with experimental ionization spectra. Additionally we improve the value of the dissociation energy for the X1Sigma+ state by high resolution spectroscopy of the vibrational ground state. 
J. Deiglmayr, M. Repp, A. Grochola, K. M\"ortlbauer, C. Gl\"uck, O.   Dulieu, J. Lange, R. Wester, and M. Weidem\"uller