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Determination of the top-quark pole mass and strong coupling constant from the t t-bar production cross section in pp collisions at $\sqrt{s}$ = 7 TeV

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Academic year: 2021

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Table 1: Default α S ( m Z ) values and α S ( m Z ) variation ranges of the NNLO PDF sets used in this analysis
Figure 1: Predicted tt cross section at NNLO+NNLL, as a function of the top-quark pole mass (left) and of the strong coupling constant (right), using five different NNLO PDF sets,  com-pared to the cross section measured by CMS assuming m t = m pole t
Figure 2: Probability distributions for the predicted tt cross section at NNLO+NNLL with m pole t = 173.2 GeV, α S ( m Z ) = 0.1184 and the NNLO parton distributions from NNPDF2.3
Figure 3: Marginal posteriors P ( m pole t ) (left) and P ( α S ) (right) based on the cross section pre- pre-diction at NNLO+NNLL with the NNLO parton distributions from NNPDF2.3
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