%0 Journal Article
%T The fully differential top decay distribution
%A Aguilar-Saavedra, J. A.
%A Boudreau, J.
%A Escobar, C.
%A Mueller, J.
%J European Physical Journal C
%D 2017
%V 77
%N 3
%I Springer
%@ 1434-6044
%G English
%F Aguilar-Saavedra_etal2017
%O WOS:000400019500002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3075), last updated on Thu, 11 May 2017 16:32:08 +0000
%X We write down the four-dimensional fully differential decay distribution for the top quark decay t -> Wb -> l nu b. We discuss how its eight physical parameters can be measured, either with a global fit or with the use of selected one-dimensional distributions and asymmetries. We give expressions for the top decay amplitudes for a general tbW interaction, and show how the untangled measurement of the two components of the fraction of longitudinal W bosons – those with b quark helicities of 1/2 and -1/2, respectively – could improve the precision of a global fit to the tbW vertex.
%R 10.1140/epjc/s10052-017-4761-5
%U http://arxiv.org/abs/1702.03297
%U https://doi.org/10.1140/epjc/s10052-017-4761-5
%P 200-8pp