TY  - JOUR
AU  - Aguilar-Saavedra, J. A.
AU  - Boudreau, J.
AU  - Escobar, C.
AU  - Mueller, J.
PY  - 2017
DA  - 2017//
TI  - The fully differential top decay distribution
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 200
EP  - 8pp
VL  - 77
IS  - 3
PB  - Springer
AB  - 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.
SN  - 1434-6044
UR  - http://arxiv.org/abs/1702.03297
UR  - https://doi.org/10.1140/epjc/s10052-017-4761-5
DO  - 10.1140/epjc/s10052-017-4761-5
LA  - English
N1  - WOS:000400019500002
ID  - Aguilar-Saavedra_etal2017
ER  -