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The phenomenology of the low scale U(1)_{B-L} extension of the standard modeland its implications at LHC is presented. In this model, an extra gauge bosoncorresponding to B-L gauge symmetry and an extra SM singlet scalar (heavyHiggs) are predicted. We show a detailed analysis of both heavy and lightHiggses decay and production in addition to the possible decay channels of thenew gauge boson. We find that the cross sections of the SM-like Higgsproduction are reduced by ~ 20%-30%, while its decay branching ratios remainintact. The extra Higgs has relatively small cross sections and the branchingratios of Z'-> l^+ l^- are of order ~20% compared to ~ 3% of the SM resuls.Hence, the search for Z' is accessible via a clean dilepton signal at LHC.

Higgs and Z' Phenomenology in B-L extension of the Standard Model at LHC