Probing R-parity violation in B-meson decays to a baryon and a light neutralino

We propose a search for $B$ meson decays to baryon plus missing energy at the Belle II experiment probe supersymmetry with GeV-scale lightest neutralino ${\tilde{\chi}_1^0}$ and $R$-parity violation (RPV). perform analytic computations of signal branching fractions in framework effective field theory, single nonzero RPV operator $\lambda''_{ij3}\bar{U}_{i}^c\bar{D}_{j}^c\bar{D}_3^c$, where $i,j=1,2$. The hadronic form factors are calculated using an SU(3) phenomenological Lagrangian approach proton, as well several hyperons charmed baryons. Since decay is kinematically CKM suppressed this theoretical scenario, it outside detector appears experimentally only energy. detail analysis techniques experimental level estimate background ${B^+ \to p {\tilde{\chi}_1^0}}$ published results $B^+\to K^+ \nu\bar\nu$. Our final sensitivity plots shown both $\lambda''_{113}$ versus squark mass $m_{\tilde{q}}$ $\lambda''_{113}/m^2_{\tilde{q}}$ $m_{{\tilde{\chi}_1^0}}$. find that could down order $10^{-8}$ GeV$^{-2}$ allowed $m_{{\tilde{\chi}_1^0}}$ range. also obtain current limits on $\lambda''_{123}$ by recasting existing interpreted ${B^0 \Lambda^0 {\tilde{\chi}_1^0}}$, comment about searches \Sigma^+ \Sigma^0 \Lambda_c^+ \Xi_c^+ {\tilde{\chi}_1^0}}$. In closing, we briefly discuss potential LHCb BESIII experiments.