Electroweakino searches at the HL-LHC in the baryon number violating MSSM

Abstract

The projected reach of direct electroweakino searches at the high luminosity LHC (HL-LHC) ($\sqrt{s}=14\text{ }\text{ }\mathrm{TeV}$, $3000\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ LHC) in the framework of simplified models with $R$-parity violating operators, ${\ensuremath{\lambda}}_{112}^{\ensuremath{'}\ensuremath{'}}{u}^{c}{d}^{c}{s}^{c}$ and ${\ensuremath{\lambda}}_{113}^{\ensuremath{'}\ensuremath{'}}{u}^{c}{d}^{c}{b}^{c}$, is studied. Four different analysis channels are chosen: $Wh$ mediated $1l+2b+\mathrm{jets}+{\overline{)\mathrm{E}}}_{\mathrm{T}}$, $Wh$ mediated $1l+2\ensuremath{\gamma}+\mathrm{jets}+{\overline{)\mathrm{E}}}_{\mathrm{T}}$, $WZ$ mediated $3l+\mathrm{jets}+{\overline{)\mathrm{E}}}_{\mathrm{T}}$ and $WZ$ mediated $3l+2b+\mathrm{jets}+{\overline{)\mathrm{E}}}_{\mathrm{T}}$ and the projected exclusion/discovery reach of direct wino searches in these channels is analyzed by performing a detailed cut-based collider analysis. The projected exclusion contour reaches up to 600--700 GeV for a massless binolike ${\ensuremath{\chi}}_{1}^{0}$ from searches in the $Wh$ mediated $1l+2b+\mathrm{jets}+{\overline{)\mathrm{E}}}_{\mathrm{T}}$, $Wh$ mediated $1l+2\ensuremath{\gamma}+\mathrm{jets}+{\overline{)\mathrm{E}}}_{\mathrm{T}}$ and $WZ$ mediated $3l+\mathrm{jets}+{\overline{)\mathrm{E}}}_{\mathrm{T}}$ channels, while the $WZ$ mediated $3l+2b+\mathrm{jets}+{\overline{)\mathrm{E}}}_{\mathrm{T}}$ search channel is found to have a projected exclusion reach up to 600 GeV for $150\text{ }\text{ }\mathrm{GeV}<{M}_{{\ensuremath{\chi}}_{1}^{0}}<250\text{ }\text{ }\mathrm{GeV}$. The baryon number violating simplified scenario considered in this work is found to furnish a weaker projected reach (typically by a factor of $\ensuremath{\sim}1/2$) than the $R$-parity conserving (RPC) case. The projected reach at the HL-LHC in these four channels is also recast for realistic benchmark scenarios.

Topics & Concepts