2013/06/13 by Howard Baer, Baer, Howard, V. Barger +11 · 1 citation
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.1306.3148
openalex publication_date 2013/06/13 · openalex created_date 2022/10/03 · openalex updated_date 2026/07/28
Imposing electroweak scale naturalness constraints (low \ΔEW) on SUSY\nmodels leads to mass spectra characterized by light higgsinos ~100-300 GeV,\nhighly mixed top-squarks and gluinos at the 1-5 TeV scale and allows for mh\n~125 GeV. First and second generation squarks can easily live at the 5-20 TeV\nscale, thus providing at least a partial solution to the SUSY flavor/CP\nproblems. For such models at the LHC, gluino pair production is followed by\ncascade decays to t- and b-quark rich final states along with multileptons. The\nreach of LHC14 with 300 fb-1 is computed to be around m tg 1.8 TeV.\nHowever, the small magnitude of the \μ-parameter-- a necessary condition for\nnaturalness-- leads to a unique hadronically quite same-sign diboson (W^\±\nW^\±) signature from wino pair production. In low \ΔEW models with\nunified gaugino masses, this signature yields a somewhat higher reach up to\nm tg 2.1 TeV. The smallness of |\μ| implies that the ILC should be a\nhiggsino factory in addition to a Higgs factory, and a complete search for SUSY\nnaturalness seems possible for \√(s) 600 GeV. Since a thermal\nunder-abundance of higgsino-like WIMP dark matter (DM) is expected, there is\nample room for an axion DM contribution. A thorough search for higgsino-like\nWIMPs can be made by next generation WIMP detectors, such as those with\nton-scale noble liquid targets.\n