2002/05/02 by A. Brandenburg, Z. G. Si, Z.G. Si +1 · 1 citation
Computer Science · Physics and Astronomy · #Bottom quark #Computational Physics and Python Applications #Jet (fluid) #Particle physics theoretical and experimental studies #Parton #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Radiative transfer #Spin (aerodynamics) #Standard Model (mathematical formulation) #Top quark #hep-ph
paper · pdf · doi:10.1016/s0370-2693(02)02098-1
published as Phys.Lett. B539 (2002) 235-241 · 11 pages
arxiv created 2002/05/02 · openalex publication_date 2002/07/01 · arxiv updated 2015/06/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present results for the differential distributions of jets from non-leptonic decays of polarized top quarks within the Standard Model, including QCD radiative corrections. Our work extends existing results which are only available for semileptonic top quark decays at the parton level. For t(\uparrow) -> b-jet + 2 light jets we compute in particular the QCD-corrected top-spin analysing power of the b-quark jet and the least energetic light jet. The dependence of the results on the choice of the jet recombination scheme is found to be small. In addition we compute the spin analysing power of the thrust axis. Our results constitute a so far missing ingredient to analyse top quark production and subsequent non-leptonic decay at next-to-leading order in alphas, keeping the full information on the top quark polarization.