Cesium satellite band at 875.2 nm stemming from the Cs-2 0(g)(+)(6p P-2(1/2)+6s S-2(1/2)) state

We measured a very distinct satellite band at 875.2 nm between two resonanc e lilies of cesium. Spectral simulation using Spies and Meyer [1] ab initio potential curves and an appropriate transition dipole moment function was compared with experimental profile. Implications of the investigated satell ite band at 875.2 nm in the field of ultracold cesium atom collisions are d iscussed with a special emphasize to new possibilities of the photoassociat ion of two ground state atoms leading to the formation of ultracold interme diate long-range molecules.