Cesium satellite band at 875.2 nm stemming from the Cs2 0g+(6p 2P1/2+6s 2S1/2) state

We measured a very distinct satellite band at 875.2 nm between two resonance 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 satellite band at 875.2 nm in the field of ultracold cesium atom collisions are discussed with a special emphasize to new possibilities of the photoassociation of two ground state atoms leading to the formation of ultracold intermediate long-range molecules.