Beyond the CMSSM without an accelerator: proton decay and direct dark matter detection

The European Physical Journal. C, Particles and Fields
J R EllisPearl Sandick

Abstract

We consider two potential non-accelerator signatures of generalizations of the well-studied constrained minimal supersymmetric standard model (CMSSM). In one generalization, the universality constraints on soft supersymmetry-breaking parameters are applied at some input scale [Formula: see text]below the grand unification (GUT) scale [Formula: see text], a scenario referred to as 'sub-GUT'. The other generalization we consider is to retain GUT-scale universality for the squark and slepton masses, but to relax universality for the soft supersymmetry-breaking contributions to the masses of the Higgs doublets. As with other CMSSM-like models, the measured Higgs mass requires supersymmetric particle masses near or beyond the TeV scale. Because of these rather heavy sparticle masses, the embedding of these CMSSM-like models in a minimal SU(5) model of grand unification can yield a proton lifetime consistent with current experimental limits, and may be accessible in existing and future proton decay experiments. Another possible signature of these CMSSM-like models is direct detection of supersymmetric dark matter. The direct dark matter scattering rate is typically below the reach of the LUX-ZEPLIN (LZ) experiment if [Formula: see te...Continue Reading

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Citations

Mar 7, 2017·The European Physical Journal. C, Particles and Fields·E BagnaschiG Weiglein
Jan 1, 2018·The European Physical Journal. C, Particles and Fields·John EllisJiaming Zheng
May 19, 2017·The European Physical Journal. C, Particles and Fields·E BagnaschiG Weiglein
Sep 28, 2017·Physical Review Letters·Emilian DudasKeith A Olive

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Software Mentioned

NUHM2
mSUGRA
biggl
XENON1T
SuperSymmetry And Relic Density ( SSARD )
SSARD
LUX

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