Should we still believe in constrained supersymmetry?

Csaba Balázs, Andy Buckley, Daniel Carter, Benjamin Joseph Farmer, Martin White

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

We calculate partial Bayes factors to quantify how the feasibility of the constrained minimal supersymmetric standard model (CMSSM) has changed in the light of a series of observations. We take as “training” data the approximate knowledge that was available before LEP, and take our comparison model to be the Standard Model with a simple dark matter candidate. Partial Bayes factors are then computed, using as inference data the LEP2 Higgs constraints, 2011 XENON100 dark matter constraints, 2011 LHC supersymmetry search results, and the early 2012 LHC Higgs search results. We find that LEP and the LHC strongly shatter our trust in the CMSSM, reducing its posterior odds by a factor of approximately two orders of magnitude. This conclusion is robust under variation of priors, but may be avoided if the CMSSM is not required to explain the (g−2) µ anomaly.

Original languageEnglish
Title of host publicationProceedings
Volume161
Publication statusPublished - 1 Jan 2012
Event8th International Workshop on the Dark Side of the Universe, DSU 2012 - Buzios, Rio de Janeiro, Brazil
Duration: 10 Jun 201215 Jun 2012

Publication series

NameProceedings of Science
PublisherScuola Internazionale Superiore di Studi Avanzati (S I S S A)
ISSN (Print)1824-8039

Conference

Conference8th International Workshop on the Dark Side of the Universe, DSU 2012
CountryBrazil
CityBuzios, Rio de Janeiro
Period10/06/1215/06/12

Keywords

  • Standard model (particle physics)
  • Gaugino masses
  • Mass

Cite this

Balázs, C., Buckley, A., Carter, D., Farmer, B. J., & White, M. (2012). Should we still believe in constrained supersymmetry? In Proceedings (Vol. 161). (Proceedings of Science).
Balázs, Csaba ; Buckley, Andy ; Carter, Daniel ; Farmer, Benjamin Joseph ; White, Martin. / Should we still believe in constrained supersymmetry?. Proceedings. Vol. 161 2012. (Proceedings of Science).
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Balázs, C, Buckley, A, Carter, D, Farmer, BJ & White, M 2012, Should we still believe in constrained supersymmetry? in Proceedings. vol. 161, Proceedings of Science, 8th International Workshop on the Dark Side of the Universe, DSU 2012, Buzios, Rio de Janeiro, Brazil, 10/06/12.

Should we still believe in constrained supersymmetry? / Balázs, Csaba; Buckley, Andy; Carter, Daniel; Farmer, Benjamin Joseph; White, Martin.

Proceedings. Vol. 161 2012. (Proceedings of Science).

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

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AB - We calculate partial Bayes factors to quantify how the feasibility of the constrained minimal supersymmetric standard model (CMSSM) has changed in the light of a series of observations. We take as “training” data the approximate knowledge that was available before LEP, and take our comparison model to be the Standard Model with a simple dark matter candidate. Partial Bayes factors are then computed, using as inference data the LEP2 Higgs constraints, 2011 XENON100 dark matter constraints, 2011 LHC supersymmetry search results, and the early 2012 LHC Higgs search results. We find that LEP and the LHC strongly shatter our trust in the CMSSM, reducing its posterior odds by a factor of approximately two orders of magnitude. This conclusion is robust under variation of priors, but may be avoided if the CMSSM is not required to explain the (g−2) µ anomaly.

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Balázs C, Buckley A, Carter D, Farmer BJ, White M. Should we still believe in constrained supersymmetry? In Proceedings. Vol. 161. 2012. (Proceedings of Science).