Results 31 to 40 of about 9,248,821 (298)
Status of the PADME experiment and review of dark photon searches
EPJ Web of Conferences, 2018 While accelerator particle physics has traditionally focused on exploring dark matter through highenergy experiments, testing dark-sectors hypothesis requires innovative low energy experiments that use highintensity beams and high-sensitivity detectors ...
Raggi M.
doaj +1 more source
Investigating the collinear splitting effects of boosted dark matter at neutrino detectors
Journal of High Energy Physics, 2023 We study the probing prospects of cosmic ray boosted dark matter (DM) in the framework of simplified electron-philic dark photon model. Focusing on the dark matter and dark photon masses around keV ~ MeV scale, we consider the bounds obtained from the ...
Jinmian Li, Junle Pei, Cong Zhang
doaj +1 more source
Unified Dark Matter models with fast transition [PDF]
, 2010 We investigate the general properties of Unified Dark Matter (UDM) fluid models where the pressure and the energy density are linked by a barotropic equation of state (EoS) p = p(ρ) and the perturbations are adiabatic.
Davide Pietrobon +12 more
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Unified Dark Matter scalar field models with fast transition [PDF]
, 2011 We investigate the general properties of Unified Dark Matter (UDM) scalar field models with Lagrangians with a non-canonical kinetic term, looking specifically for models that can produce a fast transition between an early Einstein-de Sitter CDM-like era
Bertacca, Daniele +9 more
core +1 more source
New constraints on coupled dark energy from the Planck satellite experiment [PDF]
Physical Review D, 2013 We present new constraints on coupled dark energy from the recent measurements of the cosmic microwave background anisotropies from the Planck satellite mission. We found that a coupled dark energy model is fully compatible with the Planck measurements, deriving a weak bound on the dark matter-dark energy coupling parameter xi = -0.49(-0.31)(+0.19) at ...
Salvatelli, V. +3 more
openaire +5 more sources
DESI and other Dark Energy experiments in the era of neutrino mass measurements [PDF]
Journal of Cosmology and Astroparticle Physics, 2014 expanded details of calculations - accepted ...
Font-Ribera, Andreu +5 more
openaire +2 more sources
Evidence for Dark Energy Driven by Star Formation: Information Dark Energy?
EntropyEvidence is presented for dark energy resulting directly from star formation. A survey of stellar mass density measurements, SMD(a), as a function of universe scale size a, was found to be described by a simple CPL w0 − wa parameterisation that was in ...
Michael Paul Gough
doaj +1 more source
Tritium beta decay with modified neutrino dispersion relations: KATRIN in the dark sea
Nuclear Physics B, 2023 We explore beta decays in a dark background field, which could be formed by dark matter, dark energy or a fifth force potential. In such scenarios, the neutrino's dispersion relation will be modified by its collective interaction with the dark field ...
Guo-yuan Huang, Werner Rodejohann
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Symmetron Dark Energy in Laboratory Experiments
Physical Review Letters, 2013 The symmetron scalar field is a matter-coupled dark energy candidate which effectively decouples from matter in high-density regions through a symmetry restoration. We consider a previously unexplored regime, in which the vacuum mass $μ\sim 2.4\times 10^{-3}$ eV of the symmetron is near the dark energy scale, and the matter coupling parameter $M \sim 1$
openaire +4 more sources
The internal structure of Cold Dark Matter Haloes [PDF]
, 2010 Currently favoured cosmological models for structure formation of the Universe assume that a large fraction of the mass of the Universe is 'dark'. The evidence for dark matter comes from observations of its gravitational influence.
Vogelsberger, M., Vogelsberger, Mark P.
core +1 more source