Graviton Signals in Central Production at the LHC

Figure 11

The total signal cross-sections (𝑝𝑝→𝑋+𝛾𝛾+𝑌) in diphoton channel (𝜎_𝛾𝛾) as a function of 𝑀_𝑆 at the 14 TeV LHC. In (a), we plot 𝜎_𝛾𝛾 for Δ𝜂= 1.5, 2.0, 2.5, and 3.0 for 𝑛=2. In (b), we plot 𝜎_𝛾𝛾 for 𝑛= 2–7 for Δ𝜂=2. In both plots, 𝜎_𝛾𝛾's are computed after applying the cut defined in (17).

(a)

(b)