Erratum to: Wino-like Minimal Dark Matter and future colliders

158

275

We present the state-of-the-art of the effective field theory computation of the MSSM Higgs mass, improving the existing ones by including extra threshold corrections. We show that, with this approach, the theoretical uncertainty is within 1 GeV in most of the relevant parameter space. We confirm the smaller value of the Higgs mass found in the EFT computations, which implies a slightly heavier SUSY scale. We study the large tan β region, finding that sbottom thresholds might relax the upper bound on the scale of SUSY. We present SusyHD, a fast computer code that computes the Higgs mass and its uncertainty for any SUSY scale, from the TeV to the Planck scale, even in Split SUSY, both in the DR and in the on-shell schemes. Finally, we apply our results to derive bounds on some well motivated SUSY models, in particular we show how the value of the Higgs mass allows to determine the complete spectrum in minimal gauge mediation.

Section: Jhep07(2015)159mentioning

confidence: 99%

Higgs mass determination in supersymmetry

Vega

Villadoro

2015

158

275

“…In the literature there are similar results for the disappearing track of long-lived Wino searches [34,35]. In order to be sure to reach the thermal dark matter mass range we should either increase the luminosity or the collider energy: for example with a 200 TeV JHEP05(2015)035 Figure 3.…”

Section: Long-lived Winomentioning

confidence: 53%

“…Mass reach for coloured sparticles were analysed in simplified models assuming a 100 TeV collider [31,32]. Pure Winos or higgsinos were studied in the monojet [33] and mono-photon, soft lepton and long lived particles searches [34,35]. When this work was near completion [36,37] came out with some overlap to this study.…”

Section: Jhep05(2015)035mentioning

confidence: 99%

Hunting electroweakinos at future hadron colliders and direct detection experiments

Cortona

2015

We analyse the mass reach for electroweakinos at future hadron colliders and their interplay with direct detection experiments. Motivated by the LHC data, we focus on split supersymmetry models with different electroweakino spectra. We find for example that a 100 TeV collider may explore Winos up to ∼ 7 TeV in low scale gauge mediation models or thermal Wino dark matter around 3 TeV in models of anomaly mediation with long-lived Winos. We show moreover how collider searches and direct detection experiments have the potential to cover large part of the parameter space even in scenarios where the lightest neutralino does not contribute to the whole dark matter relic density.

“…DM indirect detection signals are also not large enough because of relatively weak interactions and negligible Sommerfeld enhancements [8-11, 13, 14]. In contrast, the pure Wino DM with the radiative mass splitting of 164 MeV, another thermal DM candidate for its mass ∼ 3 TeV, provides several ways to test: monojet plus missing energy due to more efficient recoil and larger cross-section [2,4,15,16], disappearing track due to -1 -…”

Section: Introductionmentioning

confidence: 99%

Very Degenerate Higgsino Dark Matter

Chun¹,

Jung²,

Park³

2017

We present a study of the Very Degenerate Higgsino Dark Matter (DM), whose mass splitting between the lightest neutral and charged components is O(1) MeV, much smaller than radiative splitting of 355 MeV. The scenario is realized in the minimal supersymmetric standard model by small gaugino mixings. In contrast to the pure Higgsino DM with the radiative splitting only, various observable signatures with distinct features are induced. First of all, the very small mass splitting makes (a) sizable Sommerfeld enhancement and Ramsauer-Townsend (RT) suppression relevant to ∼1 TeV Higgsino DM, and (b) Sommerfeld-Ramsauer-Townsend effect saturate at lower velocities v/c 10 −3 . As a result, annihilation signals can be large enough to be observed from the galactic center and/or dwarf galaxies, while the relative signal sizes can vary depending on the locations of Sommerfeld peaks and RT dips. In addition, at collider experiments, stable chargino signatures can be searched for to probe the model in the future. DM direct detection signals, however, depend on the Wino mass; even no detectable signals can be induced if the Wino is heavier than about 10 TeV.