期刊
EUROPEAN PHYSICAL JOURNAL C
卷 76, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-015-3842-6
关键词
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资金
- London Centre for Terauniverse Studies (LCTS) from European Research Council [267352]
- UK STFC [ST/J002798/1]
- European Research Council [267352]
- DOE at the University of Minnesota [DE-SC0011842]
- Japan Society for the Promotion of Science
- NSF [PHY-1417367]
- CETUP* (Center for Theoretical Underground Physics and Related Areas)
- Grants-in-Aid for Scientific Research [14J08296] Funding Source: KAKEN
- STFC [ST/J002798/1, ST/L000326/1] Funding Source: UKRI
- Division Of Physics
- Direct For Mathematical & Physical Scien [1523395] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1417367] Funding Source: National Science Foundation
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 M-in below the grand unification (GUT) scale M-GUT, 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 M-in is close to M-GUT, but it may lie within its reach if M-in less than or similar to 10(11) GeV. Likewise, generalizing the CMSSM to allow non-universal supersymmetry-breaking contributions to the Higgs offers extensive possibilities for models within reach of the LZ experiment that have long proton lifetimes.
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