Khachatryan, V.Sirunyan, A. M.Tumasyan, A.Choudhury, R. K.Dutta, D.Kailas, S.Kataria, S. K.Mohanty, A. K.Pant, L. M.Shukla, P.2011-09-272011-09-272011Physics Letters-B, 2011. Vol. 695 (5): pp. 424-443http://hdl.handle.net/123456789/51074421 bytestext/htmlenFirst measurementcross sectiontop-quark pair productionproton-proton collisionsFirst measurement of the cross section for top-quark pair production in proton-proton collisions at s=7 TeVArticle