A search for new vector-like quarks in multilepton topologies was published today in arXiv (and submitted to Phys. Rev. D) by the ATLAS Collaboration. An important part of this analysis was done by Tiago Vale, an IDPASC student currently in his 2nd PhD year, in close collaboration with ATLAS colleagues from all over the world. Even if, unfortunately, no evidence for physics phenomena beyond the Standard Model of Particle Physics was found, very stringent limits on the production of vector-like quarks at the LHC were obtained. In some cases, these limits are the most stringent ones found so far.

Further information can be found in the arXiv record.

The copyright of the plot belongs to the ATLAS Collaboration @CERN.