A. Collaboration. (2015)cite arxiv:1511.05980Comment: 16 pages plus author list + cover page (34 pages total), 4 figures, 2 tables, submitted to PLB. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2015-01/.
S. Alioli, P. Nason, C. Oleari, and E. Re. (2009)cite arxiv:0907.4076
Comment: Figs. 10, 11 and 12 were obtained without the acceptance cuts
described in the text. They have been replaced with the correct ones.