Results 21 to 30 of about 22,766 (290)

Strong gravitational lensing probes of the particle nature of dark matter

open access: yes, 2009
There is a vast menagerie of plausible candidates for the constituents of dark matter, both within and beyond extensions of the Standard Model of particle physics. Each of these candidates may have scattering (and other) cross section properties that are consistent with the dark matter abundance, BBN, and the most scales in the matter power spectrum ...
Moustakas, Leonidas A.   +46 more
openaire   +3 more sources

Revisiting the fermionic dark matter absorption on electron target

open access: yesJournal of High Energy Physics, 2022
We perform a systematic study of the fermionic DM absorption interactions on electron target in the context of effective field theory. The fermionic DM absorption is not just sensitive to sub-MeV DM with efficient energy release, but also gives a unique ...
Shao-Feng Ge   +3 more
doaj   +1 more source

Fermionic dark matter in Dynamical Scotogenic Model

open access: yesJournal of High Energy Physics, 2023
In the Dynamical Scotogenic Model, the global B − L symmetry is supposed to be broken spontaneously resulting in a massless Goldstone boson called majoron, and massive right handed neutrinos which participate in the generation of light neutrino massses ...
Eung Jin Chun   +3 more
doaj   +1 more source

The Migdal effect in semiconductors for dark matter with masses below ∼ 100 MeV

open access: yesJournal of High Energy Physics, 2023
Dark matter scattering off a nucleus has a small probability of inducing an observable ionization through the inelastic excitation of an electron, called the Migdal effect.
Kim V. Berghaus   +3 more
doaj   +1 more source

A next-generation liquid xenon observatory for dark matter and neutrino physics

open access: yes, 2023
The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available parameter space for weakly ...
Conrad, Jan,   +7 more
core   +1 more source

Particle Dark Matter constraints: The effect of Galactic uncertainties

open access: yes, 2017
Collider, space, and Earth based experiments are now able to probe several extensions of the Standard Model of particle physics which provide viable dark matter candidates.
Bernal, Nicolás [UNESP]   +7 more
core   +3 more sources

SIMPly add a dark photon

open access: yesJournal of High Energy Physics, 2023
Pions of a dark sector gauge group can be strongly interacting massive particle (SIMP) dark matter, produced by the freeze-out of 3 → 2 interactions, with naturally large self-interactions. We study if adding a dark photon to the set-up can do it all: i)
Pieter Braat, Marieke Postma
doaj   +1 more source

DarkSUSY - A numerical package for dark matter calculations in the MSSM

open access: yes, 2001
The question of the nature of the dark matter in the Universe remains one of the most outstanding unsolved problems in basic science. One of the best motivated particle physics candidates is the lightest supersymmetric particle, assumed to be the ...
Gondolo, P   +14 more
core   +1 more source

Search for Milli-Charged particles from the Sun at IceCube

open access: yesJournal of High Energy Physics, 2022
It is assumed that heavy dark matter particles ϕ with O(TeV) mass captured by the Sun may decay to relativistic light milli-charged particles (MCPs). These MCPs could be measured by the IceCube detector.
Ye Xu
doaj   +1 more source

Light in the shadows: primordial black holes making dark matter shine

open access: yesJournal of High Energy Physics
We consider the possibility of indirect detection of dark sector processes by investigating a novel form of interaction between ambient dark matter (DM) and primordial black holes (PBHs). The basic scenario we envisage is that the ambient DM is “dormant”,
Kaustubh Agashe   +6 more
doaj   +1 more source

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