Z′ and anomalous gauge coupling effects at LEP2 and their separation

1998/04/04 by A. A. Babich, A.A. Babich, A. A. Pankov +2 · 1 citation
Physics and Astronomy · Social Sciences · #International Science and Diplomacy #Noncommutative and Quantum Gravity Theories #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1016/s0370-2693(98)00291-3

published as Phys.Lett. B426 (1998) 375-383 · 12 pages, LaTeX, 5 figures

arxiv created 1998/04/04 · openalex publication_date 1998/05/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

In the case of the process e⁺e^-→μ⁺μ^-, we study the sensitivity to either Z^′ or anomalous gauge coupling effects of two new observables, σ₊ and σ_-, conveniently defined for such kind of analysis. We discuss general properties of the deviations of these observables from the Standard Model predictions, and derive the model-independent bounds on the relevant parameters allowed by present and foreseeable LEP2 data. We also discuss the possibility of separating the two kinds of effect.

Citations

• Z′ interference effects from TRISTAN to LEP2

Cited by

• Model-independent limits on four-fermion contact interactions at LC with polarization