Neutralino dark matter at 14 TeV and 100 TeV

By M. Low, Lian-tao Wang. 2014

204 citations recorded by the source corpus.

A bstractIn recent years the search for dark matter has intensified with competitive bounds coming from collider searches, direct detection, and indirect detection. Collider searches at the Large Hadron Collider (LHC) lack the necessary center-of-mass energy to probe TeV-scale dark matter. It is TeV-scale dark matter, however, that remains viable for many models of supersymmetry. In this paper, we study the reach of a 100 TeV proton-proton collider for neutralino dark matter and compare to 14 TeV LHC projections. We employ a supersymmetric simplified model approach and present reach estimates from monojet searches, soft lepton searches, and disappearing track searches. The searches are applied to pure neutralino spectra, compressed neutralino spectra, and coannihilating spectra. We find a factor of 4-5 improvement in mass reach in going from 14 TeV to 100 TeV. More specifically, we find that given a 1% systematic uncertainty, a 100 TeV collider could exclude winos up to 1.4 TeV and higgsinos up to 850 GeV in the monojet channel. Coannihilation scenarios with gluinos can be excluded with neutralino masses of 6.2 TeV, with stops at 2.8 TeV, and with squarks at 4.0 TeV. Using a soft lepton search, compressed spectra with a chargino-neutralino splitting of Δm = 20 − 30 GeV can exclude neutralinos at ~1 TeV. Given a sufficiently long chargino lifetime, the disappearing track search is very effective and we extrapolate current experimental bounds to estimate that a ~2TeVwinocouldbediscoveredanda ~3TeVwinocouldbeexcluded.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/b5bedcf3a9d74451017441fba7ff08b558768b0e

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Citations in the corpus

Physics opportunities of a 100 TeV proton–proton collider (2015, methodology): “A tick is placed every 5 GeV with the exception of the consecutive ∆m = 25 GeV ticks [68].”
Beyond the Standard Model Physics at the HL-LHC and HE-LHC (2018, background): “Therefore, the production of can be searched for by in mono-X events, such as mono-jet [248] and mono-photon; in VBF +E T events as can also be produced via VBF [249]; and also in events characterised by high pT tracks (caused by ±) which end inside the detector once they have decayed into 0 and sof”
Illuminating dark photons with high-energy colliders (2014, background): “Searches for such hidden-sector degrees of freedom are an important component of the physics program at the LHC and future colliders, such as the envisioned 100 TeV proton-proton collider [1–3] (see also [4–14]).”
Testing electroweak baryogenesis with future colliders (2014, background): “This was already observed in [105] for neutralino dark matter.”
Non-Abelian dark matter and dark radiation (2015, result): “For the “wino”, our results are consistent with the more sophisticated studies in ([40, 41]).”