Status and perspectives of indirect and direct dark matter searches

Fornengo, N.

doi:10.1016/j.asr.2007.02.067

Cited by 8 publications

(8 citation statements)

References 19 publications

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“…μν is symmetric and divergence-free (∇ μ T (N ) μν = 0) in agreement with (6). In the Newtonian regime thus T (N ) μν qualifies as the well-known conserved energy-momentum tensor of matter…”

Section: Modified Energeticssupporting

confidence: 52%

“…The DM hypothesis provides viable explanations not only for flat rotation curves but also for various cosmological and astronomical observations describing different phases of the evolution of the Universe. Several experimental groups have been searching for DM particles by utilizing various detection methods (see the recent review volumes [5,6]). So far, no signal of DM has been observed.…”

Section: Introductionmentioning

confidence: 99%

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Relativistic MOND from modified energetics

Demir

Karahan

2014

Eur. Phys. J. C

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We begin to investigate the question of what modifications in the energy-momentum tensor can yield the correct MOND regime. As a starting study, we refrain from insisting on an action principle and focus exclusively on the equations of motion. The present work, despite the absence of an explicit action functional, can be regarded to extend Milgrom's modified inertia approach to relativistic domain. Our results show that a proper MOND limit arises if the energymomentum tensor is modified to involve the determinant of the metric tensor in reference to the flat metric, where the latter is dynamically generated as in the gravitational Higgs mechanism. This modified energy-momentum tensor is conserved in both Newtonian and MONDian regimes.

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Section: Modified Energeticssupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Relativistic MOND from modified energetics

Demir

Karahan

2014

Eur. Phys. J. C

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“…From the experimental point of view, direct and indirect methods [130] exist for detecting the WIMPs in the galactic halo. The methods can probe complementary regions of the supersymmetric parameter space, even when more extensive LHC results will become available.…”

Section: Indirect Dark Matter Searchesmentioning

confidence: 99%

High-energy astrophysics with neutrino telescopes

Chiarusi

Spurio

2010

Eur. Phys. J. C

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Neutrino astrophysics offers new perspectives on the Universe investigation: high energy neutrinos, produced by the most energetic phenomena in our Galaxy and in the Universe, carry complementary (if not exclusive) information about the cosmos with respect to photons. While the small interaction cross section of neutrinos allows them to come from the core of astrophysical objects, it is also a drawback, as their detection requires a large target mass. This is why it is convenient put huge cosmic neutrino detectors in natural locations, like deep underwater or under-ice sites. In order to supply for such extremely hostile environmental conditions, new frontiers technologies are under development. The aim of this work is to review the motivations for high energy neutrino astrophysics, the present status of experimental results and the technologies used in underwater/ice Cherenkov experiments, with a special focus on the efforts for the construction of a km 3 scale detector in the Mediterranean Sea. 1 2 T. Chiarusi and M. Spurio

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“…28) where W T,P = c W c T,P , W c T,P = (σ c T,P θ c fwhm ) −2 is the weight per solid angle for temperature and polarisation respectively, with a 1-σ sensitivity per pixel of σ c T,P and a beam of θ c fwhm extent, for each frequency channel c. The beam window function is given in terms of the full width half maximum (fwhm) beam width by B 2 ℓ…”

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confidence: 99%

Inclusive constraints on unified dark matter models from future large-scale surveys

Camera¹,

Carbone²,

Moscardini³

2012

J. Cosmol. Astropart. Phys.

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In the very last years, cosmological models where the properties of the dark components of the Universe -dark matter and dark energy -are accounted for by a single "dark fluid" have drawn increasing attention and interest. Amongst many proposals, Unified Dark Matter (UDM) cosmologies are promising candidates as effective theories. In these models, a scalar field with a non-canonical kinetic term in its Lagrangian mimics both the accelerated expansion of the Universe at late times and the clustering properties of the largescale structure of the cosmos. However, UDM models also present peculiar behaviours, the most interesting one being the fact that the perturbations in the dark-matter component of the scalar field do have a non-negligible speed of sound. This gives rise to an effective Jeans scale for the Newtonian potential, below which the dark fluid does not cluster any more. This implies a growth of structures fairly different from that of the concordance ΛCDM model. In this paper, we demonstrate that forthcoming large-scale surveys will be able to discriminate between viable UDM models and ΛCDM to a good degree of accuracy. To this purpose, the planned Euclid satellite will be a powerful tool, since it will provide very accurate data on galaxy clustering and the weak lensing effect of cosmic shear. Finally, we also exploit the constraining power of the ongoing CMB Planck experiment. Although our approach is the most conservative, with the inclusion of only well-understood, linear dynamics, in the end we also show what could be done if some amount of non-linear information were included.

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Status and perspectives of indirect and direct dark matter searches

Cited by 8 publications

References 19 publications

Relativistic MOND from modified energetics

Relativistic MOND from modified energetics

High-energy astrophysics with neutrino telescopes

Inclusive constraints on unified dark matter models from future large-scale surveys

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