Charged dark matter

Rújula, A. De; Glashow, Sheldon L.; Sarid, Uri

doi:10.1016/0550-3213(90)90227-5

Cited by 208 publications

(239 citation statements)

References 12 publications

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“…This down-scattering continues thereafter, so early decays (z d < 20) produced positrons that thermalized with electrons and protons. These positrons behave as CHAMPs [30,31] (albeit not the dominant component of the dark matter, as in the traditional CHAMP scenario), collapsing with baryons and dark matter to form galaxies. As we will see below, they quickly annihilate in the disk or bulge of the Galaxy on timescales much too short to explain 511 keV radiation in our Galaxy.…”

Section: Figmentioning

confidence: 99%

Cold positrons from decaying dark matter

2012

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Many models of dark matter contain more than one new particle beyond those in the Standard Model. Often heavier particles decay into the lightest dark matter particle as the Universe evolves. Here we explore the possibilities that arise if one of the products in a (Heavy Particle) → (Dark Matter) decay is a positron, and the lifetime is shorter than the age of the Universe. The positrons cool down by scattering off the cosmic microwave background and eventually annihilate when they fall into Galactic potential wells. The resulting 511 keV flux not only places constraints on this class of models but might even be consistent with that observed by the INTEGRAL satellite.

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Section: Figmentioning

confidence: 99%

Cold positrons from decaying dark matter

2012

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“…In the MSSM, the R-parity which guarantees LSP stability is needed to eliminate rapid proton decay, while the electroweak scale interactions and mass scales that determine the relic abundance are motivated from naturalness considerations of the SM. As there are strong bounds on charged dark matter [407,408,409], the viable MSSM parameter region is usually that within which the LSP is neutral. Among the neutral LSP candidates, neutralinos and sneutrinos each have electroweak scale interactions that can naturally lead to dark matter densities consistent with observations.…”

Section: Dark Mattermentioning

confidence: 99%

The soft supersymmetry-breaking Lagrangian: theory and applications

Chung

Everett

Kane³

et al. 2005

Physics Reports

415

339

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After an introduction recalling the theoretical motivation for low energy (100 GeV to TeV scale) supersymmetry, this review describes the theory and experimental implications of the soft supersymmetry-breaking Lagrangian of the general minimal supersymmetric standard model (MSSM). Extensions to include neutrino masses and nonminimal theories are also discussed. Topics covered include models of supersymmetry breaking, phenomenological constraints from electroweak symmetry breaking, flavor/CP violation, collider searches, and cosmological constraints including dark matter and implications for baryogenesis and inflation.

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“…Case (ii) is unacceptable, as it corresponds to charged dark matter [9]. It also leads to overclosure of the universe for typical values of the messenger masses.…”

mentioning

confidence: 99%

Dark matter in theories of gauge-mediated supersymmetry breaking

Dimopoulos¹,

Giudice²,

Pomarol³

1996

Physics Letters B

182

255

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In gauge-mediated theories supersymmetry breaking originates in a strongly interacting sector and is communicated to the ordinary sparticles via SU(3)×SU(2)×U(1) carrying "messenger" particles. Stable baryons of the strongly interacting supersymmetry breaking sector naturally weigh ∼ 100 TeV and are viable cold dark matter candidates. They interact too weakly to be observed in dark matter detectors. The lightest messenger particle is a viable cold dark matter candidate under particular assumptions. It weighs less than 5 TeV, has zero spin and is easily observable in dark matter detectors.

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Charged dark matter

Cited by 208 publications

References 12 publications

Cold positrons from decaying dark matter

Cold positrons from decaying dark matter

The soft supersymmetry-breaking Lagrangian: theory and applications

Dark matter in theories of gauge-mediated supersymmetry breaking

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