1 1.5 2 2.5 10 −2 10 −1 LHC, s=10TeV,95%C.L. Electrons L = 100pb −1 L = 1 fb −1 Muons L = 100pb −1 L = 1 fb −1 M$_{Z’}$  (TeV) g’ 1 (a) 1 1.5 2 0.04 0.05 0.06 0.07 0.08 0.09 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 g’$_{1}$=0.05 =0.05 M$_{Z’}$ (TeV) Int. Lum. (fb −1 ) 1 g’ =0.1 1 g’ g’$_{1}$=0.2 Muons =0.1 1 g’ =0.2 1 g’ Electrons 95% C.L. (b) FIG. 13: (13a) Contour levels for 95% C.L. plotted against g ′ 1 and M$_{Z}$ ′ at the LHC for selected integrated luminosities and (13b) integrated luminosity required for observation at 3 σ and 5 σ vs. M$_{Z}$ ′ for selected values of g ′ 1 (in which only the allowed combination of masses and couplings are shown), for √$_{s}$ = 10 TeV, for both electrons and muons. The shaded areas and the allowed ( M$_{Z}$ ′ , g ′ $_{1}$) shown are in accordance with eq. (21) (LEP bounds, in black) and table II (Tevatron bounds, in red for electrons and in green for muons). √$_{s}$ = 10 TeV pp → e $^{+}$e − pp → µ $^{+}$µ − ∫ L (fb − $^{1}$) g ′ 1 = 0 . 05 g ′ 1 = 0 . 1 g ′ 1 = 0 . 2 g ′ 1 = 0 . 05 g ′ 1 = 0 . 1 g ′ 1 = 0 . 2 0.1 700 1100 1450 − 950 1450 0.2 800 1250 1650 650 1100 1650 0.5 1000 1500 1950 800 1350 1950 1 1150 1700 2200 950 1550 2200 TABLE VII: Maximum Z ′ B − L boson masses (in GeV) for a 95% C.L. exclusion for selected g ′ 1 and integrated luminosities in the B − L model. No numbers are quoted for already excluded configurations. 27