1998/05/31 by Bohdan Grza̧dkowski, B. Grzadkowski, Zenrō Hioki +1 · 2 citations
Physics and Astronomy · #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.61.014013
published as Phys.Rev. D61 (2000) 014013 · Final version, To appear in Phys. Rev. D
arxiv created 1999/09/01 · openalex publication_date 1999/12/10 · arxiv updated 2009/11/30 · openalex created_date 2017/03/16 · openalex updated_date 2026/07/28
The energy spectrum of the lepton(s) in e+e^\ensuremath-\ensuremath→tt\ensuremath→l^\ifmmode±\else\textpm\fi\ensuremath⋯/l+l^\ensuremath-\ensuremath⋯ at next linear colliders (NLC's) is studied for arbitrary longitudinal beam polarizations as a test of possible new physics in top-quark couplings. The most general nonstandard form factors are assumed for \ensuremathγtt, Ztt, and Wtb vertices to analyze new-physics effects in a model-independent way. The expected precision in determining these form factors is estimated applying the optimal-observable procedure to the spectrum.