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Setting limits on supersymmetry using simplified models
High Energy Physics - Experiment · Submitted 13 Feb 2012
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Limits obtained under various physical assumptions are comparable to those produced by directed searches.
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The abstract, sentence by sentence
Experimental limits on supersymmetry and similar theories are difficult to set because of the enormous available parameter space and difficult to generalize because of the complexity of single points. Therefore, more phenomenological, simplified models are becoming popular for setting experimental limits, as they have clearer physical implications. The use of these simplified model limits to set a real limit on a concrete theory has not, however, been demonstrated. This paper recasts simplified model limits into limits on a specific and complete supersymmetry model, minimal supergravity. Limits obtained under various physical assumptions are comparable to those produced by directed searches. A prescription is provided for calculating conservative and aggressive limits on additional theories. Using acceptance and efficiency tables along with the expected and observed numbers of events in various signal regions, LHC experimental results can be re-cast in this manner into almost any theoretical framework, including non-supersymmetric theories with supersymmetry-like signatures.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Experimental limits on supersymmetry and similar theories are difficult to set because of the enormous available parameter space and difficult to generalize because of the complexity of single points. | background 1.00 | 0.05 | 0.02 | asserted 1.00 |
| s1 | Therefore, more phenomenological, simplified models are becoming popular for setting experimental limits, as they have clearer physical implications. | background 1.00 | 0.05 | 0.04 | asserted 0.97 |
| s2 | The use of these simplified model limits to set a real limit on a concrete theory has not, however, been demonstrated. | gap 1.00 | 0.05 | 0.04 | asserted 1.00 |
| s3 | This paper recasts simplified model limits into limits on a specific and complete supersymmetry model, minimal supergravity. | contribution 0.99 | 0.93 | 0.32 | asserted 1.00 |
| s4 | Limits obtained under various physical assumptions are comparable to those produced by directed searches. | result 0.98 | 0.86 | 0.24 | asserted 1.00 |
| s5 | A prescription is provided for calculating conservative and aggressive limits on additional theories. | contribution 0.83 | 0.85 | 0.14 | asserted 1.00 |
| s6 | Using acceptance and efficiency tables along with the expected and observed numbers of events in various signal regions, LHC experimental results can be re-cast in this manner into almost any theoretical framework, including non-supersymmetric theories with supersymmetry-like signatures. | method 0.80 | 0.44 | 0.18 | asserted 0.70 |
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The paper
Original abstract
Experimental limits on supersymmetry and similar theories are difficult to set because of the enormous available parameter space and difficult to generalize because of the complexity of single points. Therefore, more phenomenological, simplified models are becoming popular for setting experimental limits, as they have clearer physical implications. The use of these simplified model limits to set a real limit on a concrete theory has not, however, been demonstrated. This paper recasts simplified model limits into limits on a specific and complete supersymmetry model, minimal supergravity. Limits obtained under various physical assumptions are comparable to those produced by directed searches. A prescription is provided for calculating conservative and aggressive limits on additional theories. Using acceptance and efficiency tables along with the expected and observed numbers of events in various signal regions, LHC experimental results can be re-cast in this manner into almost any theoretical framework, including non-supersymmetric theories with supersymmetry-like signatures.
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References
How the literature uses it
5 arXiv papers cite this in 5 sentences
Papers citing it · 3 sentences without a confident label
Cites it as background 2 papers
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The limit of applicability of simplified model limits is, however, rarely explored, and neither is there a well defined procedure for combining information from different simplified models to obtain sparticle mass limits in more realistic scenarios (though the use of simplified models to obtain limits in GUT scale SUSY models was considered in [ref] ).
A simple technique for combining simplified models and its application to direct stop production · Simplified models for direct stop production · 0.83
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Similar ideas have also been discussed in the literature [ref] .
Fastlim: a fast LHC limit calculator · Discussion and Future Developments · 0.80
What it cites · 10 sentences without a confident label
Uses the method or tool of 6 papers
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In order to mimic an LHC detector, the events are passed through the Pretty Good Simulation ( PGS)~ [ref] with an ``ATLAS'' parameter card, and cone jets with a radius of 0.4 are reconstructed using Fastjet~ [ref] .
Dispelling the N^3 myth for the Kt jet-finder · Model Deconstruction · 1.00
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The branching fractions are acquired using MSSMCalc, and matrix element event generation is done using MadGraph 5 1.3.9~ [ref] with CTEQ 6L1 PDFs~ [ref] .
MadGraph 5 : Going Beyond · Model Deconstruction · 1.00
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The branching fractions are acquired using MSSMCalc, and matrix element event generation is done using MadGraph 5 1.3.9~ [ref] with CTEQ 6L1 PDFs~ [ref] .
New Generation of Parton Distributions with Uncertainties from Global QCD Analysis · Model Deconstruction · 1.00
Compares with 1 paper
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Comparison in a one-lepton region similar to that used in a recent ATLAS SUSY search [ref] are shown in Figure [ref] and [ref].
Search for squarks and gluinos using final states with jets and missing transverse momentum with the ATLAS detector in sqrt(s) = 7 TeV proton-proton collisions · Model Reconstruction · 0.90
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