Renormalizability and model independent description of Z' signals at low energies

Details Renormalizability and model independent description of Z' signals at low energies Renormalizability and model independent description of Z' signals at low energies

2000-04-05

arxiv.org/abs/hep-ph/0004038v2

Eur.Phys.J.C17:685-694,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 5 figures, RevTeX. The text of the paper is rewritten to be more clear and precise

Scientific paper

10.1007/s100520000496

Model independent search for signals of heavy Z' gauge bosons in low-energy four-fermion processes is analyzed. It is shown that the renormalizability of the underlying theory containing Z', formulated as a scattering in the field of heavy virtual states, can be implemented in specific relations between different processes. Considering the two-Higgs-doublet model as the low-energy basis theory, the two types of Z' interactions with light particles are found to be compatible with the renormalizability. They are called the Abelian and the "chiral" couplings. Observables giving possibility to uniquely detect Z' in both cases are introduced.

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