Speaker
Description
The $R_{D^{(\ast)}}$ anomaly is one of the most intriguing experimental results in particle physics. Experiments as BaBar, Belle and LHCb have measured a consistent tension with the standard model. In this work we study a consequence of different solutions to this tension as a sequential $\mathrm{W}'$ boson, EFT and leptoquark. Such models, are not only able to explain the $R_{D^{(\ast)}}$ anomaly but also to produce distinctive signatures at the LHC. We proposed a search for the signature $\mathrm{b},\tau,p_{T}^{miss}$ maximizing the statistical significance with regard to standard model backgrounds as $W^{\pm} + \text{jets}$, $Z^{0} + \text{jets}$ and $t\bar{t}$. We finally show how the different models require a differentiated selection criteria and the exclusion that can be achieved.
