Vector triplets of the standard model $\mathrm{SU}(2{)}_L$ group are a universal prediction of “natural” new physics models involving a new composite sector and are therefore among the most plausible new particles that the LHC could discover. We consider the possibility that one such triplet could account for the ATLAS excess in the boson-tagged jets analysis and we assess the compatibility of this hypothesis with all other relevant searches. We find that the hypothesis is not excluded and that the predicted signal is close to the expected sensitivity of several channels, some of which show an upper fluctuation of the observed limit while others do not. An accurate study of the signal compatibility with these fluctuations could only be performed by the experimental collaborations.

• Received 8 July 2015

DOI:https://doi.org/10.1103/PhysRevLett.115.221802