Abstract
We classify weak-scale extensions of the Standard Model which automatically preserve its accidental and approximate symmetry structure at the renormalizable level and which are hence invisible to low-energy indirect probes. By requiring the consistency of the effective field theory up to scales of Λeff ≈ 1015 GeV and after applying cosmological constraints, we arrive at a finite set of possibilities that we analyze in detail. One of the most striking signatures of this framework is the presence of new charged and/or colored states which can be efficiently produced in high-energy particle colliders and which are stable on the scale of detectors.
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Di Luzio, L., Gröber, R., Kamenik, J.F. et al. Accidental matter at the LHC. J. High Energ. Phys. 2015, 74 (2015). https://doi.org/10.1007/JHEP07(2015)074
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DOI: https://doi.org/10.1007/JHEP07(2015)074