Results 21 to 30 of about 2,716,965 (190)
Systematizing the effective theory of self-interacting dark matter
If dark matter has strong self-interactions, future astrophysical and cosmological observations, together with a clearer understanding of baryonic feedback effects, might be used to extract the velocity dependence of the dark matter scattering rate.
Prateek Agrawal+2 more
doaj +1 more source
Collider signatures of coannihilating dark matter in light of the B-physics anomalies
Motivated by UV explanations of the B-physics anomalies, we study a dark sector containing a Majorana dark matter candidate and a coloured coannihilation partner, connected to the Standard Model predominantly via a U 1 vector leptoquark.
Michael J. Baker+2 more
doaj +1 more source
Dark matter from a complex scalar singlet: the role of dark CP and other discrete symmetries
We study the case of a pseudo-scalar dark matter candidate which emerges from a complex scalar singlet, charged under a global U(1) symmetry, which is broken both explicitly and spontaneously.
Leonardo Coito+3 more
doaj +1 more source
Dark matter in the Randall-Sundrum model with non-universal coupling
We consider simplified dark matter models (DM) interacting gravitationally with the standard model (SM) particles in a Randall-Sundrum (RS) framework. In this framework, the DM particles interact through the exchange of spin-2 Kaluza-Klein (KK) gravitons
Ashok Goyal+2 more
doaj +1 more source
Non-Abelian Einstein-Born-Infeld-Dilaton Cosmology [PDF]
The non-abelian Einstein-Born-Infeld-Dilaton theory, which rules the dynamics of tensor-scalar gravitation coupled to a $su(2)$-valued gauge field ruled by Born-Infeld lagrangian, is studied in a cosmological framework.
Alimi, J. -M., Fuzfa, A.
core +6 more sources
Boosted dark matter quarrying at surface neutrino detectors
We propose the idea of “Earth Shielding” to reject cosmic-ray backgrounds, in the search for boosted dark matter at surface neutrino detectors, resulting in the enhancement of the signal-to-background ratio.
Doojin Kim+3 more
doaj +1 more source
Motivated by the possibility of enhancing dark matter (DM) self-scattering cross-section σ self , we have revisited the issue of DM annihilation through a Breit-Wigner resonance.
M. Duch, B. Grzadkowski
doaj +1 more source
Inflation and dark matter in the inert doublet model
We discuss inflation and dark matter in the inert doublet model coupled non-minimally to gravity where the inert doublet is the inflaton and the neutral scalar part of the doublet is the dark matter candidate.
Sandhya Choubey, Abhass Kumar
doaj +1 more source
Probing the pre-BBN universe with gravitational waves from cosmic strings
Many motivated extensions of the Standard Model predict the existence of cosmic strings. Gravitational waves originating from the dynamics of the resulting cosmic string network have the ability to probe many otherwise inaccessible properties of the ...
Yanou Cui+3 more
doaj +1 more source
Dark matter freeze out during an early cosmological period of QCD confinement
Standard lore states that there is tension between the need to accommodate the relic density of a weakly interacting massive particle and direct searches for dark matter.
Dillon Berger+3 more
doaj +1 more source