Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-07-03
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, 2 figures. Talk given at the 2nd Young Researchers Workshop "Physics Challenges in the LHC Era", Frascati, May 10 and
Scientific paper
We consider a class of minimal extensions of the Standard Model with an extra massive neutral gauge boson Z'. They include both family-universal models, where the extra U(1) is associated with (B-L), and non-universal models where the Z' is coupled to a non-trivial linear combination of B and the lepton flavours. After giving an estimate of the range of parameters compatible with a Grand Unified Theory, we present the current experimental bounds, discussing the interplay between electroweak precision tests and direct searches at the Tevatron. Finally, we assess the discovery potential of the early LHC.
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