A search for standard model production of four top quarks (t t ¯ t t ¯) is reported using events containing at least three leptons (e , μ) or a same-sign lepton pair. The events are produced in proton–proton collisions at a center-of-mass energy of 13TeV at the LHC, and the data sample, recorded in 2016, corresponds to an integrated luminosity of 35.9fb-1. Jet multiplicity and flavor are used to enhance signal sensitivity, and dedicated control regions are used to constrain the dominant backgrounds. The observed and expected signal significances are, respectively, 1.6 and 1.0 standard deviations, and the t t ¯ t t ¯ cross section is measured to be 16.9-11.4+13.8fb, in agreement with next-to-leading-order standard model predictions. These re...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
The standard model (SM) production of four top quarks (t t ¯ t t ¯) in proton–proton collisions is s...
The standard model (SM) production of four top quarks (tt¯tt¯) in proton–proton collisions is studie...
A search for standard model production of four top quarks (t t ¯ t t ¯) is reported using events con...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (tttt) is reported using events containing...
A search for standard model production of four top quarks (tttt) is reported using events containing...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
The standard model (SM) production of four top quarks (t t ¯ t t ¯) in proton–proton collisions is s...
The standard model (SM) production of four top quarks (tt¯tt¯) in proton–proton collisions is studie...
A search for standard model production of four top quarks (t t ¯ t t ¯) is reported using events con...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (tttt) is reported using events containing...
A search for standard model production of four top quarks (tttt) is reported using events containing...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (t (t) over bart (t) over bar) is reported...
A search for standard model production of four top quarks (tt¯tt¯) is reported using events containi...
The standard model (SM) production of four top quarks (t t ¯ t t ¯) in proton–proton collisions is s...
The standard model (SM) production of four top quarks (tt¯tt¯) in proton–proton collisions is studie...