Lectures on Walking Technicolor, Holography, and Gauge/Gravity Dualities

Figure 6

LHC exclusion/discovery reach from 𝑝𝑝→𝜇⁺𝜇⁻+𝑋 as a function of 𝑀_𝜌=𝑀≃𝑀_𝛾′≃𝑀_𝑊′≃𝑀_𝑍′ and of 𝑅 defined in the text. The curves are obtained by requiring 10 events, for integrated luminosity of 1,3,10,30,100 fb−1. The darkest region is excluded by indirect limits from 𝑆<3×10⁻³. The light-grey-shaded region is allowed by precision data only for 𝜀<0.5, so that the dominant decay mode of the techni-rho is into longitudinally polarized SM gauge bosons (and hence the signal in SM fermions strongly attenuated, or invisible) and the large-𝑁 approximations used in the analysis performed here do not hold.