LHC pp → e $^{+}$e − pp → µ $^{+}$µ − ∫ L (fb − $^{1}$) g ′ 1 = 0 . 05 g ′ 1 = 0 . 1 g ′ 1 = 0 . 158 g ′ 1 = 0 . 05 g ′ 1 = 0 . 1 g ′ 1 = 0 . 158 0.1 670 900 1100 − 820 − 0.2 770 1050 1250 − 950 1225 0.5 950 1225 1450 700 1100 1425 1 1075 1375 1600 800 1250 1575 Tevatron pp → e $^{+}$e − pp → µ $^{+}$µ − ∫ L (fb − $^{1}$) g ′ 1 = 0 . 05 g ′ 1 = 0 . 1 g ′ 1 = 0 . 158 g ′ 1 = 0 . 05 g ′ 1 = 0 . 1 g ′ 1 = 0 . 158 6 750 950 − − − − 8 775 975 − − 860 − 10 800 1000 − − 875 − 12 825 1020 − 680 900 − TABLE VI: 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. Finally, we consider the LHC at √$_{s}$ = 14 TeV. Due to the improved resolutions for both electrons and muons, they have very similar exclusion powers for couplings g ′ 1 ≳ 0 . 1, therefore setting similar constraints. Depending on the amount of data that will be collected, several maximum bounds can be set (see figure 14a): i.e., with 10 fb − 1 of data, the LHC at 26 C. LHC at √ s = 14 TeV for a coupling bigger than ∼ 0 . 2: here, the far right lines (in red) correspond to g ′ 1 = 0 . 2, and this coupling can be excluded from the minimum allowed mass (1 . 4 TeV) up to 2 . 2 TeV for 1 fb − $^{1}$. As one decreases the coupling, electrons set more stringent bounds: for g ′ 1 = 0 . 1(0 . 05), the mass that can be excluded ranges between 900(700) GeV and 1 . 70(1 . 20) TeV for electrons while for muons it ranges between 800(700) and 1 . 55(0 . 95) for the same values of the coupling, the maximum values being for 1 fb − 1 of integrated luminosity. The 95% C.L. exclusions for the LHC at √$_{s}$ = 10 TeV are summarised in table VII, for selected values of couplings and integrated luminosities.