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Solar reflection of dark matter with dark-photon mediators
Journal of Cosmology and Astroparticle PhysicsWe consider the scattering of low-mass halo dark-matter particles in the hot plasma of the Sun, focusing on dark matter that interact with ordinary matter through a dark-photon mediator.
T. Emken, Rouven Essig, Hailin Xu
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Science, 2012
Astronomers still don't know what the unseen "dark matter" is that provides the gravity that holds the galaxies together, but they may soon be able to narrow in on its most basic properties.
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Astronomers still don't know what the unseen "dark matter" is that provides the gravity that holds the galaxies together, but they may soon be able to narrow in on its most basic properties.
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Effect of generic dark matter halo on transonic accretion onto galactic black holes
The environment surrounding a black hole or black hole binaries is generally expected to play an important role in understanding various astrophysical phenomena around them.
Avijit Chowdhury +3 more
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SINGLET NEUTRINOS AS HOT DARK MATTER
Modern Physics Letters A, 1993A model is presented that generates mass and magnetic moment matrices for singlet neutrinos radiatively at one-loop level. It allows the singlet neutrinos to account for the hot dark matter and the anomalous ionization of interstellar hydrogen.
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Hot and Heavy Dark Matter from Supercooling
2023We point out that dark matter which is produced non-adiabatically in a phase transition (PT) with fast bubble walls receives a boost in velocity which leads to long free-streaming lengths. We find that this could be observed via the suppressed matter power spectrum for dark matter masses around $10^8 - 10^9$ GeV and energy scales of the PT around $10 ...
Baldes, Iason +2 more
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Neutrinoless Double Beta Decay — and Hot Dark Matter
2006Nuclear double beta decay provides an extraordinarly broad potential to search for beyond-standard-model physics. The occurrence of the neutrinoless decay (0νββ) mode has fundamental consequences: first total lepton number is not conserved, and second, the neutrino is a Majorana particle.
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MAPPING DARK MATTER IN HOT STELLAR SYSTEMS
International Journal of Modern Physics D, 1994Recent work on the dynamics of elliptical galaxies suggests that it is possible to determine the radial distribution of mass in hot stellar systems using only line-of-sight velocities of a sample of stars, without any a priori assumptions about either the relative distribution of dark and luminous components, or the stellar velocity distribution.
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Large Extra Dimensions and Hot Dark Matter
2001A neutrino mass-mixing scheme which explains qualitatively all present evidence for neutrino mass (the solar and atmospheric neutrino deficits, LSND, and significant hot dark matter) also successfully avoids the “alpha effect”, allowing r-process nucleosynthesis in the neutrino-heated ejecta of supernovae. The properties of neutrinos required to ensure
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Weyl, Dirac and high-fold chiral fermions in topological quantum matter
Nature Reviews Materials, 2021M Zahid Hasan +2 more
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