Results 51 to 60 of about 28,541 (177)
What charged cosmic rays tell us on dark matter
SciPost Physics Proceedings, 2023 Dark matter particles could be the major component of the haloes of galaxies. Their mutual annihilations or decays would produce an indirect signature under the form of high-energy cosmic-rays.
Pierre Salati
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Axionic hot dark matter in the hadronic axion window [PDF]
Physics Letters B, 1998 Mixed dark matter scenario can reconcile the COBE data and the observed large scale structure. So far the massive neutrino with a mass of a few eV has been the only discussed candidate for the hot dark matter component. We point out that the hadronic axion in the so-called hadronic axion window, f_a \sim 10^6 GeV, is a perfect candidate as hot dark ...
Hitoshi Murayama +2 more
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Atmosphere, 2021 A recent study pointed out that macroscopic dark matter (macros) traversing through the Earth’s atmosphere can give rise to hot and ionized channels similar to those associated with lightning leaders. The authors of the study investigated the possibility
Vernon Cooray +3 more
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Axion dark matter and the Lattice
EPJ Web of Conferences, 2018 First I will review the QCD theta problem and the Peccei-Quinn solution, with its new particle, the axion. I will review the possibility of the axion as dark matter.
Moore Guy
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Are the Galaxies with Indefinitely Flat Circular Velocities Located Inside Large Dark Matter Haloes?
UniverseA recent study using weak gravitational lensing revealed that the rotation curves of some isolated galaxies are found at a very large distance from their galactic centres. This may provide strong evidence supporting Modified Newtonian Dynamics (MOND) and
Man Ho Chan +2 more
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Frontiers in Microbiology, 2022 Diverse yet-uncultivated bacteria and archaea, i.e., microbial dark matter, are present in terrestrial hot spring environments. Numerous metagenome-assembled genomes (MAGs) of these uncultivated prokaryotes by short-read metagenomics have been reported ...
Shingo Kato +4 more
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Dark fermions and spontaneous CP violation in SU(2)-axion inflation
Journal of High Energy Physics, 2020 Remarkably, if CP was spontaneously broken in the physics of inflation, fermions would notice and remember it. Based on that, we present a new (non-thermal) mechanism for generating self-interacting dark Dirac fermions prior to the Hot Big Bang.
Azadeh Maleknejad
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, 1999 10 pages, 1 figure, talk given at 23rd Johns Hopkins Workshop, "Neutrinos in the Next Millenium"
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Axion relic pockets — a theory of dark matter
Journal of High Energy PhysicsWe propose a new theory of dark matter based on axion physics and cosmological phase transitions. We show that theories in which a gauge coupling increases through a first-order phase transition naturally result in ‘axion relic pockets’: regions of relic
Pierluca Carenza +3 more
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ORGANIC CARBON CONTENT IN AN ARGIC FAEOZIOM SOIL FROM COJOCNA
Agricultura, 2016 Organic matter in the soil is a carbon-rich material that includes plants, animals and microbial residues in various stages of decomposition. Living organisms in the soil and plant roots are part of the carbon reserve in the soil, but are not considered
Lavinia Moldovan +3 more
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