This change does not have any impact on the measured helicity fractions, but it changes the obtained limits on the anomalous couplings.

Erratum to: Measurement of the W boson polarisation in t t ¯ events from pp collisions at √ s = 8 TeV in the lepton + jets channel with ATLAS (The European Physical Journal C, (2017), 77, 4, (264), 10.1140/epjc/s10052-017-4819-4)

Capua M.;Crosetti G.;Mastroberardino A.;Meoni E.;Schioppa M.;