Minimal Dark Matter

By Marco Cirelli, N. Fornengo, Alessandro Strumia. 2005

279 citations recorded by the source corpus.

Abstract A few multiplets that can be added to the SM contain a lightest neutral component which is automatically stable and provides allowed DM candidates with a non-standard phenomenology. Thanks to coannihilations, a successful thermal abundance is obtained for well defined DM masses. The best candidate seems to be a SU ( 2 ) L fermion quintuplet with mass 4.4 TeV, accompanied by a charged partner 166 MeV heavier with life-time 1.8 cm , that manifests at colliders as charged tracks disappearing in π ± with 97.7% branching ratio. The cross section for usual NC direct DM detection is σ SI = f 2 1.0 × 10 −43 cm 2 where f ∼ 1 is a nucleon matrix element. We study prospects for CC direct detection and for indirect detection.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/20dd1dcc000f6827f972780374d59616df8c403d

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Citations in the corpus

From the Trees to the Forest: A Review of Radiative Neutrino Mass Models (2017, background): “septuplet, in the spirit of minimal dark matter [386, 387] such that undesirable couplings are forbidden by the SM gauge group alone.”
An Introduction to Particle Dark Matter (2019, methodology): “…the Lagrangian becomes: and: The “original” minimal DM model (MDM) is given by an SU ( 2 ) L multiplet with a given spin and mass, see Reference [79]: We have to require vanishing hypercharge and electric charge equal to: This implies that no operators could mediate decay (i.e., terms of type χ…”
Physics at a 100 TeV pp collider: Higgs and EW symmetry breaking studies (2016, background): “Cases in which φ is an even-dimensional SU(2) representation are generically in tension with null searches for scattering with nuclei, but odd-dimensional SU(2) representations remain relatively unconstrained [350, 351].”
Building and testing models with extended Higgs sectors (2017, unknown): “s and the Inert doublet model. Of course, several other scalar sectors have been studied as well. One specic direction which received much attention goes under the name of \minimal dark matter" [414, 415, 416]. Here, one adds extra elds, which can be scalars, in a higher-dimensional representat”
Improved naturalness with a heavy Higgs boson: An alternative road to CERN LHC physics (2006, unknown): “Another allowed process, the exchange of two gauge bosons at one loop, gives an effective coupling to nucleons similar to the tree-level h exchange (see [16] for a recent discussion).”
Natural Dark Matter from an unnatural Higgs boson and new colored particles at the TeV scale (2007, background): “In this case, agreement with the observed relic density from cosmological measurements [15] forces the φ mass into the multi-TeV region (see [3] for discussion of doublet Dark Matter in this case).”
Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider (2019, background): “This is because the lifetime, cτ, depends on the third power of the mass splitting in these scenarios when the charged LLP decays to a charged pion [57, 121].”
What is the γγ resonance at 750 GeV? (2015, background): “Unfortunately, in view of gauge annihilations, any electroweak multiplet would have a thermal relic abundance smaller than the DM relic abundance, if its mass is below M/2 (and above MW , as suggested by experimental constraints) [50].”
Neutralino dark matter at 14 TeV and 100 TeV (2014, background): “The value of the splitting has been calculated at twoloops to be ∆ = 164.6 MeV in the large mass limit [83], though the mass splitting varies very – 7 – little with respect to wino mass.”