$\mathrm{MB}_\mathrm{AND}$ trigger rates for horizontal (left) and vertical (right) relative displacements of the proton beams, for van der Meer scan IIperformed at 7 TeV. Dots are raw trigger rates, squares are interaction rates after corrections discussed in the text. The linesare to guide the eye. Only statistical errors are shown | ![](https://alice-publications.web.cern.ch/sites/default/files/papers/2834/Fig09-21413.png ) |