ATLAS search for the Xb -> π+π–ϒ(1S) counterpart to the X(3872)

The submitted abstracted is: We present the measurement of the differential cross-section of the X(3872) state through its decays to J/psi pi pi final state. The cross-sections was extracted for both prompt and non-prompt production. The existence of the X(3872) suggests the presence of its bottomonium counterpart X_b. Search for X_b with the ATLAS experiment in several final states, including Upsilon pi pi, is presented. The X(3872) measurements are not ready. The focus of the talk is the Xb search.