2010/09/13 by Alexey Gulov, ALEXEY GULOV, Vladimir Skalozub +1 · 10 citations
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Fermion #Gauge (firearms) #Gauge boson #High-Energy Particle Collisions Research #Lepton #Observable #Particle physics theoretical and experimental studies #Quark #Standard Model (mathematical formulation) #Tevatron #Top quark #hep-ph
paper · pdf · doi:10.1142/s0217751x10051086
published in International Journal of Modern Physics A 25(32), 5787-5815 (World Scientific) · 29 pages, 9 figures, 6 tables
arxiv created 2010/09/13 · openalex publication_date 2010/12/29 · arxiv updated 2011/01/04 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The paper deals with an approach to the model-independent searching for the Z' gauge boson as a virtual state in scattering processes. The relations between the Z' couplings to fermions covering a wide class of models beyond the Standard Model are found and used. They reduce in an essential way the number of parameters to be fitted in experiments. Special observables which uniquely pick out the Z' at energies of LEP and ILC colliders in different leptonic processes are introduced and the data of LEP experiments are analyzed. The Z' couplings to leptons and quarks are estimated at 95% confidence level. At this level, the LEP data are compatible with the existence of the Z' with the mass m Z′ ~ 1–1.2 TeV . These estimates may serve as a guide for experiments at the Tevatron and/or LHC. A comparison with other approaches and results is given.