Gauge-Singlet Vector-Like Fermion Dark Matter, LHC Diphoton Rate, and Direct Detection

Figure 8

For various shown, and leading to  fb (a) and the regions  fb (b) for (orange and green, resp.) with  GeV, for the choice of the reference mass scale  TeV. The plots apply to any model with a as here, with the “” showing the values for the particular model of Section 2 with parameter values as listed in the text.

(a)

(b)