Results from the second science run of ZEPLIN-III

Araújo, H. M.

doi:10.1063/1.3700600

Cited by 2 publications

(5 citation statements)

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“…The steeply raising green line replicates the results from Fig. 2 corresponding to the right DM relic density of Ω DM h 2 = 0.1200 (12) [37] (with 1-σ uncertainty).…”

Section: Phenomenology Of Dark Matter and The Mediatorsupporting

confidence: 82%

“…In the calculation of the cross section per DM mass, the relative velocity of DM particles is set to 10 km/s corresponding to Dwarf Galaxies. The steeply raising green line replicates the results from Fig.2corresponding to the right DM relic density of Ω DM h 2 = 0.1200(12) [37] (with 1-σ uncertainty).…”

supporting

confidence: 82%

“…In Fig. 2 we show the values for the mediator mass m η versus the quartic parameter λ χη which provide the observed relic density of Ω DM h 2 = 0.1200 (12) [37] (the value in parenthesis gives the 1-σ uncertainty). This study is done for four different values of the DM mass, that is, m χ in the range from 0.5 GeV to 2 GeV as indicated in the figure . From this study we see that it is possible for a light DM candidate accompanied by a slightly heavier mediator to achieve the right, that is, indirectly observed relic density.…”

Section: Phenomenology Of Dark Matter and The Mediatormentioning

confidence: 99%

“…On the other hand we are facing very severe negative results from direct searches of DM, for instance from the cryogenic experiments SuperCDMS [2], CRESST [3], EDELWEISS [4], and the noble liquid experiments ArDM [5], DarkSide [6], DEAP [7], LUX [8], PandaX [9], WARP [10], XENON [11], ZEPLIN [12]. These experiments provide very low upper limits for the interaction cross sections of DM with nucleons.…”

Section: Introductionmentioning

confidence: 99%

“…Figure2. Mass of the mediator m η versus the quartic coupling parameter λ χη providing the observed relic density of Ω DM h 2 = 0.1200(12) [37] (with 1-σ uncertainty). The study shows the values for four different choices of a light DM particle, that is, m χ equals 0.5 GeV (upper left), 1.0 GeV (upper right), 1.5 GeV (lower left), 2.0 GeV (lower right).…”

mentioning

confidence: 99%

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Light dark matter in a minimal extension with two additional real singlets

Maniatis

2020

Preprint

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The direct searches for heavy scalar Dark Matter with a mass of order 100 GeV are much more sensitive than for light Dark Matter of order 1 GeV. The question arises whether Dark Matter could be light and has escaped detection so far. We study a simple extension of the Standard Model with two additional real singlets. We show that this simple extension may provide the observed relic Dark Matter density, does not disturb Big-Bang nucleosynthesis nor the Cosmic Microwave Radiation observations and fulfills the conditions of clumping behavior for different sizes of Galaxies. The potential of one Standard Model-like Higgs-boson doublet and the two singlets gives rise to a changed Higgs phenomenology, in particular, an enhanced invisible Higgs-boson decay rate is expected, detectable by missing transversal momentum searches at the ATLAS and CMS experiments at CERN.

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“…The steeply raising green line replicates the results from Fig. 2 corresponding to the right DM relic density of Ω DM h 2 = 0.1200 (12) [37] (with 1-σ uncertainty).…”

Section: Phenomenology Of Dark Matter and The Mediatorsupporting

confidence: 82%

supporting

confidence: 82%