Measurement of the centrality dependence of the charged-particle pseudorapidity distribution in proton–lead collisions at \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\sqrt{s_{_\text {NN}}} = 5.02$$\end{document}sNN=5.02 TeV with the ATLAS detector