Single Top as Window on Heavy Quarks and Other New Physics

Figure 4

Measured 𝑅_𝑡 value in ATLAS, compared to the values calculated for different NLO PDF sets. The error on the calculated values contains the uncertainty on the renormalisation and factorisation scales. The combined statistical and systematic uncertainty of the measurement is shown in green, while the statistical uncertainty is represented by the yellow error band. Taken from [31].