J. A. Aguilar-Saavedra, F. R. Joaquim
Published 2014-08-11Version 1
The CMS collaboration has recently reported a 2.8$\sigma$ excess of $eejj$ events with an invariant mass around 2 TeV. This observation can be explained in the context of standard model extensions with new gauge bosons $W'$, $Z'$ and heavy neutrinos coupling (mainly) to the electron. We discuss additional signals that allow to confirm or discard the $W'$ and $Z'$ hypotheses.
Effects of an extra $Z'$ gauge boson on the top quark decay $t --> c γ$
A closer look at the $R_D$ and $R_{D^*}$ anomalies
A closer look at post-decay $t \bar t$ entanglement
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