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

Area of Science:

• High Energy Physics
• Particle Physics
• Cosmology

Background:

• The Constrained Minimal Supersymmetric Standard Model (CMSSM) is a well-studied theoretical framework.
• Generalizations of the CMSSM relax universality constraints on supersymmetry-breaking parameters.
• The measured Higgs boson mass necessitates high masses for supersymmetric particles (sparticles).

Purpose of the Study:

• To investigate non-accelerator signatures of two generalizations of the CMSSM.
• To explore implications for proton decay and dark matter detection.
• To assess the viability of these models within current and future experimental limits.

Main Methods:

• Consideration of sub-GUT scale universality for soft supersymmetry-breaking parameters.
• Relaxation of Higgs doublet mass universality while retaining squark and slepton universality at the GUT scale.
• Analysis of predicted proton lifetimes and dark matter scattering rates.

Main Results:

• Heavy sparticle masses (TeV scale) are required by the Higgs mass, consistent with CMSSM-like models.
• Proton lifetimes may align with experimental limits when these models are embedded in SU(5) grand unification.
• Direct dark matter detection rates depend on specific model parameters, with some scenarios potentially within reach of the LUX-ZEPLIN (LZ) experiment.

Conclusions:

• Generalizations of the CMSSM provide testable predictions for proton decay and dark matter searches.
• These models offer possibilities for discovering new physics beyond the Standard Model.
• Future experiments like LZ could probe these extended supersymmetric scenarios.