Papers › The ABC of RPV: Classification of R-Parity Violating Signatures at the LHC for Small Couplings
The ABC of RPV: Classification of R-Parity Violating Signatures at the LHC for Small Couplings
Herbi K. Dreiner, Yong Sheng Koay, Dominik Köhler, Víctor Martín Lozano, Javier Montejo Berlingen, Saurabh Nangia, Nadja Strobbe
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We perform a classification of all potential supersymmetric R-parity violating signatures at the LHC to address the question: are existing bounds on supersymmetric models robust, or are there still signatures not covered by existing searches, allowing LHC-scale supersymmetry to be hiding? We analyze all possible scenarios with one dominant RPV trilinear coupling at a time, allowing for arbitrary LSPs and mass spectra. We consider direct production of the LSP, as well as production via gauge-cascades, and find 6 different experimental signatures for the LLE̅-case, 6 for the LQD̅-case, and 5 for the U̅D̅D̅-case; together these provide complete coverage of the RPV-MSSM landscape. This set of signatures is confronted with the existing searches by \texttt{ATLAS} and \texttt{CMS}. We find all signatures have been covered at the LHC, although not at the sensitivity level needed to probe the direct production of all LSP types. For the case of a dominant LLE̅-operator, we use \texttt{CheckMATE} to quantify the current lower bounds on the supersymmetric masses and find the limits to be comparable to or better than the R-parity conserving case. Our treatment can be easily extended to scenarios with more than one non-zero RPV coupling.
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