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High Energy Physics - Phenomenology

arXiv:1610.08059 (hep-ph)
[Submitted on 25 Oct 2016 (v1), last revised 2 Sep 2017 (this version, v3)]

Title:Cornering Natural SUSY at LHC Run II and Beyond

Authors:Matthew R. Buckley, David Feld, Sebastian Macaluso, Angelo Monteux, David Shih
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Abstract:We derive the latest constraints on various simplified models of natural SUSY with light higgsinos, stops and gluinos, using a detailed and comprehensive reinterpretation of the most recent 13 TeV ATLAS and CMS searches with $\sim 15$ fb$^{-1}$ of data. We discuss the implications of these constraints for fine-tuning of the electroweak scale. While the most "vanilla" version of SUSY (the MSSM with $R$-parity and flavor-degenerate sfermions) with 10% fine-tuning is ruled out by the current constraints, models with decoupled valence squarks or reduced missing energy can still be fully natural. However, in all of these models, the mediation scale must be extremely low ($<100$ TeV). We conclude by considering the prospects for the high-luminosity LHC era, where we expect the current limits on particle masses to improve by up to $\sim 1$ TeV, and discuss further model-building directions for natural SUSY that are motivated by this work.
Comments: v2: added tree level- parton shower matching, fixed bug in Delphes, main results unchanged. 24 pages, 7 figures, plus appendix
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
Cite as: arXiv:1610.08059 [hep-ph]
  (or arXiv:1610.08059v3 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1610.08059
Journal reference: JHEP08(2017)115
Related DOI: https://doi.org/10.1007/JHEP08%282017%29115

Submission history

From: Angelo Monteux [view email]
[v1] Tue, 25 Oct 2016 20:00:03 UTC (1,857 KB)
[v2] Tue, 22 Nov 2016 23:12:24 UTC (1,858 KB)
[v3] Sat, 2 Sep 2017 19:48:04 UTC (2,047 KB)
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