Search for new neutral bosons at future colliders Águila Giménez, Francisco Del Masip Mellado, Manuel Pérez-Victoria, Manuel Superstring-inspired models Hadron colliders E+E colliders Gauge bosons Renormalization Couplings Constraints Physics Leptons Limits Presented at the XIX International Conference on Theoretical Physics "Particle Physics and Astrophysics in the Standard Model and Beyond", Bystra, Poland, september 19-26, 1995. This is a short review of present and future limits on new neutral gauge bosons, in particular on hadrophilic or leptophobic Z’s recently proposed to interpret the observed fluctuations of Γc,b at LEP. Light gauge bosons coupled to lepton number differences or to baryon number are also examples of the model dependence of these bounds. The mixing between the U(1) factors plays an important role in the phenomenology of these extended electroweak models. Future improvements based on the analysis of precise electroweak data are emphasized. 2014-07-01T08:40:29Z 2014-07-01T08:40:29Z 1996 info:eu-repo/semantics/article Águila, F.; Masip, M.; Pérez-Victoria, M. Search for new neutral bosons at future colliders. Acta Physica Polonica B, 27(7): 1469-1477 (1996). [http://hdl.handle.net/10481/32419] 0587-4254 1509-5770 http://hdl.handle.net/10481/32419 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ info:eu-repo/semantics/openAccess Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License Jagiellonian University