Search for bottom squarks in the baryon-number violating MSSM

We consider a scenario of a minimal supersymmetric standard model with $R$-parity violation, where the lightest supersymmetric particle is the lighter bottom squark $({\stackrel{\texttildelow{}}{b}}_{1})$. We study the production of a bottom squark pair at the LHC and their subsequent decays through the baryon number violating operators leading to a top pair with two light quarks. Looking for both semileptonic and fully hadronic (no leptons) final states, we perform cut-based as well as multivariate analyses (MVA) to estimate the signal significance at the 13 TeV run of the LHC. We find that a cut-based analysis can probe bottom squark mass up to $\ensuremath{\sim}750\text{ }\text{ }\mathrm{GeV}$, which may be extended up to $\ensuremath{\sim}850\text{ }\text{ }\mathrm{GeV}$ using MVA with $300\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ integrated luminosity. The fully hadronic final state, however, is not as promising.