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 — preprints:2002:ttp02-04 [2016/03/17 11:03] (current) Line 1: Line 1: + ====== TTP02-04 QCD-corrected spin analysing power of jets in decays of polarized top quarks ====== + + + <​hidden TTP02-04 ​ QCD-corrected spin analysing power of jets in decays of polarized top quarks > 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 $t(\uparrow)\to b$-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 $\alpha_s$, keeping + the full information on the top quark polarization. + ​ + |**A. Brandenburg,​ Z. G. Si, and P. Uwer** ​ | + |**  Phys.Lett. ​ B539 235-241 2002  **  | + | {{preprints:​2002:​ttp02-04.pdf|PDF}} {{preprints:​2002:​ttp02-04.ps|PostScript}} [[http://​arxiv.org/​abs/​hep-ph/​0205023|arXiv]] ​  | + | |