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Dark matter (Astronomy)

ν-inflaton dark matter

ν-inflaton dark matter

... and dark matter to be weakly interacting neutral fields, and outside the reach of the present framework of the SM, it is interesting to speculate whether the same field can describe both at different ...

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Scale-invariant scalar field dark matter through the Higgs portal

Scale-invariant scalar field dark matter through the Higgs portal

... the dark scalar that could allow for its detection, the required suppression of the latter makes this rather challenging in ...decays, dark scalar-photon oscillations and induced oscillations of the fine ...

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Analytic study of cosmological perturbations in a unified model of dark matter and dark energy with a sharp transition

Analytic study of cosmological perturbations in a unified model of dark matter and dark energy with a sharp transition

... cold dark matter (CDM) dominates the evolution of the universe after ...dubbed dark energy (DE) which has an equation of state close to that of a cosmological constant and which dominates the energy ...

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Consequences of dark matter-dark energy interaction on cosmological parameters derived from type Ia supernova data

Consequences of dark matter-dark energy interaction on cosmological parameters derived from type Ia supernova data

... Variable-mass particles generically arise in models where the quintessence field is coupled to the nonbaryonic dark matter field (coupling to baryonic matter is severely restricted [22]). Such a ...

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A unified model of inflation, dark matter, neutrino masses and baryogenesis

A unified model of inflation, dark matter, neutrino masses and baryogenesis

... the dark matter content of the Universe, due to an incom- plete decay of the ...and matter fluctuations and to the slow-roll ...discussed Dark Matter basic notions and reproduced the ...

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Dynamical 3-Space: Alternative Explanation of the "Dark Matter Ring"

Dynamical 3-Space: Alternative Explanation of the "Dark Matter Ring"

... “dark matter” density, as a spatial self-interaction effect. This “dark matter” density is that required to reproduce the gravi- tational acceleration if we used Newton’s law of ...

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Unified description of dark energy and dark matter within the generalized hybrid metric-palatini theory of gravity

Unified description of dark energy and dark matter within the generalized hybrid metric-palatini theory of gravity

... Before proceeding with the analysis of the above system of equations, let us point out that in Reference [13] other choices were made for the potential (4). There, in one of the analyzed cases, the potential was chosen ...

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Results from a search for dark matter in the complete LUX exposure

Results from a search for dark matter in the complete LUX exposure

... Neutron calibrations with the DD source were per- formed in each date bin. For each individual exposure segment, the best-fit parameters from the corresponding ER calibration are applied to the NEST NR model. The ...

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Testing cosmological structure formation in unified dark matter-energy models

Testing cosmological structure formation in unified dark matter-energy models

... Unified Dark Matter-Energy models (UDM), a class of models that entertains the possibility of a universe where dark matter and dark energy exist as a single ...between dark ...

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The DarkSide multiton detector for the direct dark matter search

The DarkSide multiton detector for the direct dark matter search

... Among the variety of detector technologies, noble liquid time projection chambers (TPCs), which detect both the scintillation light and the ionization electrons produced by recoiling nuclei, are particularly promising. ...

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On a possible connection between Chandler wobble and dark matter

On a possible connection between Chandler wobble and dark matter

... that dark matter (DM) and dark energy composes around 96% of the mass of the Universe we investi- gate in this paper the possibility of DM to contribute, at least in part, for the excitation and ...

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Signatures of Dark Matter Burning in Nuclear Star Clusters

Signatures of Dark Matter Burning in Nuclear Star Clusters

... how dark matter (DM) annihilation inside stars changes the aspect of a stellar cluster we computed the evolution until the ignition of the He burning of stars from ...

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$^{83\textrm{m}}$Kr calibration of the 2013 LUX dark matter search

$^{83\textrm{m}}$Kr calibration of the 2013 LUX dark matter search

... ergetic peak conveniently just above the energy region of interest, dispersible uniformly throughout the detec- tor volume, with a convenient hours-scale decay time. The monoenergetic signal enables a precise correction ...

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Identification of Radiopure Titanium for the LZ Dark Matter Experiment and Future Rare Event Searches

Identification of Radiopure Titanium for the LZ Dark Matter Experiment and Future Rare Event Searches

... LZ (LUX-ZEPLIN) is a second generation dark matter experiment, presently under construction [1]. It will fea- ture a two-phase xenon time projection chamber (TPC), containing approximately 7 tonnes of ...

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Liquid xenon scintillation measurements and pulse shape discrimination in the LUX dark matter detector

Liquid xenon scintillation measurements and pulse shape discrimination in the LUX dark matter detector

... liquid xenon PSD in small R&D detectors [10, 13, 14], and it was successfully used to reduce backgrounds in early liquid-xenon-based dark matter searches [15–18]. However, these studies are restricted ...

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Calibration, event reconstruction, data analysis, and limit calculation for the LUX dark matter experiment

Calibration, event reconstruction, data analysis, and limit calculation for the LUX dark matter experiment

... Cold Dark Matter (ΛCDM) model of the Universe is in excellent agreement with numerous differ- ent types of astrophysical observations [1, ...cold dark mat- ter (CDM), which is nearly a factor of ...

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Scalar field dark matter with spontaneous symmetry breaking and the  $3.5$ keV line

Scalar field dark matter with spontaneous symmetry breaking and the $3.5$ keV line

... the dark scalar never thermalizes with the cosmic plasma and behaves effectively as an oscillating condensate throughout its whole cosmic ...cold dark matter after the ...

6

Composite dark matter phenomenology in the presence of lighter degrees  of freedom

Composite dark matter phenomenology in the presence of lighter degrees of freedom

... Scalar dark matter (DM) in the context of composite Higgs models (CHM) [ 1 – 3 ] has received important attention in the last years [ 4 – 23 ]. The reason is that both the Higgs boson and the DM are ...

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Technical Results from the Surface Run of the LUX Dark Matter Experiment

Technical Results from the Surface Run of the LUX Dark Matter Experiment

... The light collection properties of the LUX detector are of utmost im- portance for the dark matter search, as they affect directly the size of the S1 signals and, consequently, our energy reach and ...

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Dynamics and Phenomenology of Scalar Field Dark Matter through the Higgs Portal

Dynamics and Phenomenology of Scalar Field Dark Matter through the Higgs Portal

... our dark scalar never thermalizes with the ambient cosmic plasma, such a bias could survive until the EWPT and therefore lead to the destruction of any domain wall network generated during the phase ...for ...

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