Article History
Received: 16 November 2017
Accepted: 14 May 2018
First Online: 25 May 2018
Change Date: 23 November 2019
Change Type: Erratum
Change Details: In this Erratum we clarify that in contrast to the statements made in the article the bounds on the axion coupling to two <i>W</i>’s and to two <i>Z</i>’s obtained from mono-W and mono-Z searches at the LHC are the following: