Constraints on the mass and mixing of Z' bosons

Details Constraints on the mass and mixing of Z' bosons Constraints on the mass and mixing of Z' bosons

2009-10-01

arxiv.org/abs/0910.0269v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

Format fixed, 5 pages, 2 figures, Talk given at the 17th International Conference on Supersymmetry and the Unification of Fund

Scientific paper

We tested several models in which the Standard Model (SM) gauge group is extended by an additional U(1) gauge symmetry, against available electroweak precision data to impose limits on the mass of the neutral Z' boson, M_Z', predicted in all such models, and on the Z-Z' mixing angle, theta_ZZ', at 95% C.L. We found lower limits on M_Z' of order 1 TeV in most cases, while theta_ZZ' was found to be constrained to very small values.

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