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Setting limits on supersymmetry using simplified models

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 l...

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Detalles Bibliográficos
Autores principales: Gutschow, C., Marshall, Z.
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:http://cds.cern.ch/record/1423925
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author Gutschow, C.
Marshall, Z.
author_facet Gutschow, C.
Marshall, Z.
author_sort Gutschow, C.
collection CERN
description 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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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
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spelling cern-14239252019-09-30T06:29:59Zhttp://cds.cern.ch/record/1423925engGutschow, C.Marshall, Z.Setting limits on supersymmetry using simplified modelsParticle Physics - ExperimentExperimental 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.arXiv:1202.2662oai:cds.cern.ch:14239252012-02-14
spellingShingle Particle Physics - Experiment
Gutschow, C.
Marshall, Z.
Setting limits on supersymmetry using simplified models
title Setting limits on supersymmetry using simplified models
title_full Setting limits on supersymmetry using simplified models
title_fullStr Setting limits on supersymmetry using simplified models
title_full_unstemmed Setting limits on supersymmetry using simplified models
title_short Setting limits on supersymmetry using simplified models
title_sort setting limits on supersymmetry using simplified models
topic Particle Physics - Experiment
url http://cds.cern.ch/record/1423925
work_keys_str_mv AT gutschowc settinglimitsonsupersymmetryusingsimplifiedmodels
AT marshallz settinglimitsonsupersymmetryusingsimplifiedmodels