Figure 13

Beauty production cross section per rapidity unit at midrapidity as a function of $\s$ as measured in pp collisions by the ALICE  and PHENIX  Collaborations and in $\ppbar$ collisions by the CDF  and UA1  Collaborations. The ALICE data points are shifted in the $\s$-axis for better visibility. The solid and dashed lines with the shaded band represents the FONLL  and NNLO  calculations with their uncertainties, respectively.