R-parity violating resonant stop production at the Large Hadron Collider

Abstract

We have investigated the resonant production of a stop at the Large Hadron Collider, driven by baryon number violating interactions in supersymmetry. We work in the framework of minimal supergravity models with the lightest neutralino being the lightest supersymmetric particle which decays within the detector. We look at various dilepton and trilepton final states, with or without b-tags. A detailed background simulation is performed, and all possible decay modes of the lighter stop are taken into account. We find that higher stop masses are sometimes easier to probe, through the decay of the stop into the third or fourth neutralino and their subsequent cascades. We also comment on the detectability of such signals during the 7 TeV run, where, as expected, only relatively light stops can be probed. Our conclusion is that the resonant process may be probed, at both 10 and 14 TeV, with the R-parity violating coupling λ"_{312} as low as 0.05, for a stop mass of about 1 TeV. The possibility of distinguishing between resonant stop production and pair-production is also discussed.

20 pages, 4 figures, 6 tables; Version accepted by JHEP

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• Probing natural SUSY from stop pair production at the LHC
• Search for monotop signatures in proton-proton collisions at sqrt(s) = 8 TeV
• Monotop phenomenology at the Large Hadron Collider
• Revisiting monotop production at the LHC
• Boosting Searches for Natural SUSY with RPV via Gluino Cascades
• The Same-Sign Dilepton Signature of RPV/MFV SUSY
• New signatures and limits on R-parity violation from resonant squark production
• Baryonic violation of R-parity from anomalous $U(1{)}_H$
• Probing Radiative Neutrino Mass Generation through Monotop Production
• Search for the lightest scalar top quark in R-parity violating decays at the LHC
• The ABC of RPV II: Classification of R-parity Violating Signatures from UDD Couplings and their Coverage at the LHC
• Characterizing New Physics with Polarized Beams at High-Energy Hadron Colliders
• Can Flavor Physics Hint at Distinctive Signals for R-parity Violation at the LHC?