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The health of SUSY after the Higgs discovery and the XENON100 data

AutorCabrera, María Eugenia ; Casas, Alberto ; Ruiz de Austri, Roberto
Palabras claveSupersymmetry Phenomenology
dark matter
Fecha de publicación1-jul-2013
EditorSpringer
CitaciónJournal of High Energy Physics 07 (7): 182 - 47 (2013)
ResumenWe analyze the implications for the status and prospects of supersymmetry of the Higgs discovery and the last XENON data. We focus mainly, but not only, on the CMSSM and NUHM models. Using a Bayesian approach we determine the distribution of probability in the parameter space of these scenarios. This shows that, most probably, they are now beyond the LHC reach. This negative chances increase further (at more than 95% c.l.) if one includes dark matter constraints in the analysis, in particular the last XENON100 data. However, the models would be probed completely by XENON1T. The mass of the LSP neutralino gets essentially fixed around 1TeV. We do not incorporate ad hoc measures of the fine-tuning to penalize unnatural possibilities: such penalization arises automatically from the careful Bayesian analysis itself, and allows to scan the whole parameter space. In this way, we can explain and resolve the apparent discrepancies between the previous results in the literature. Although SUSY has become hard to detect at LHC, this does not necessarily mean that is very fine-tuned. We use Bayesian techniques to show the experimental Higgs mass is at similar to 2 sigma off the CMSSM or NUHM expectation. This is substantial but not dramatic. Although the CMSSM or the NUHM are unlikely to show up at the LHC, they are still interesting and plausible models after the Higgs observation; and, if they are true, the chances of discovering them in future dark matter experiments are quite high.
Versión del editorhttp://dx.doi.org/10.1007/JHEP07(2013)182
URIhttp://hdl.handle.net/10261/125046
DOI10.1007/JHEP07(2013)182
ISSN1029-8479
E-ISSN1029-8479
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