Abstract
We discuss resonant squark production at the LHC via baryonic R-parity violating interactions. The cross section easily exceeds pair-production and a new set of signatures can be used to probe squarks, particularly stops. These include dijet resonances, same-sign top quarks and four-jet resonances with large b-jet multiplicities, as well as the possibility of displaced neutralino decays. We use publicly available searches at \( \sqrt{s}=8 \) TeV and first results from collisions at \( \sqrt{s}=13 \) TeV to set upper limits on R-parity violating couplings, with particular focus on simplified models with light stops and neutralinos. The exclusion reach of these signatures is comparable to R-parity-conserving searches, \( {m}_{\tilde{t}} \) ≃ 500–700 GeV. In addition, we find that O(1) couplings involving the stop can be excluded well into the multi-TeV range, and stress that searches for single- and pair-produced four-jet resonances will be necessary to exclude sub-TeV stops for a natural SUSY spectrum with light higgsinos.
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Monteux, A. New signatures and limits on R-parity violation from resonant squark production. J. High Energ. Phys. 2016, 216 (2016). https://doi.org/10.1007/JHEP03(2016)216
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DOI: https://doi.org/10.1007/JHEP03(2016)216