The status of GMSB after 1/fb at the LHC

By Y. Kats, Patrick Meade, Michael J. Reece, David Shih. Journal of High Energy Physics, 2011

172 citations recorded by the source corpus.

We thoroughly investigate the current status of supersymmetry in light of the latest searches at the LHC, using General Gauge Mediation (GGM) as a well-motivated signature generator that leads to many different simplified models. We consider all possi-ble promptly-decaying NLSPs in GGM, and by carefully reinterpreting the existing LHC searches, we derive limits on both colored and electroweak SUSY production. Overall, the coverage of GGM parameter space is quite good, but much discovery potential still remains even at 7 TeV. We identify several regions of parameter space where the current searches are the weakest, typically in models with electroweak production, third generation sfermions or squeezed spectra, and we suggest how ATLAS and CMS might modify their search strategies given the understanding of GMSB at 1/fb. In particular, we propose the use of leptonic MT2 to suppress \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$t\overline t$\end{document} backgrounds. Because we express our results in terms of simplified models, they have broader applicability beyond the GGM framework, and give a global view of the current LHC reach. Our results on 3 rd generation squark NLSPs in particular can be viewed as setting direct limits on naturalness.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/50d9c29a5e05f0b82ac3b538efbd4782a96d4846

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Citations in the corpus

Stop the top background of the stop search (2012, background): “(MT2 has been proposed to reduce tt̄ andW W backgrounds in the di-lepton search channel [47, 48].”
On naturalness of the MSSM and NMSSM (2012, background): “Concretely speaking, the Higgs sector parameters are free, and the stops are treated in a special role just as in the SUSY framework with the light third family sfermions [4–11].”
SUSY, the Third Generation and the LHC (2011, background): “This intriguing possibility is not yet excluded, and the reader is refered to [16, 55].”