Results 11 to 20 of about 20,356 (164)
Unification of the standard model and dark matter sectors in [SU(5) × U(1)]4
Journal of High Energy Physics, 2019 A simple model of dark matter contains a light Dirac field charged under a hidden U(1) gauge symmetry. When a chiral matter content in a strong dynamics satisfies the t’Hooft anomaly matching condition, a massless baryon is a natural candidate of the ...
Ayuki Kamada +2 more
doaj +1 more source
Light dark matter from inflaton decay
Journal of High Energy Physics, 2021 We propose a simple mechanism of light dark matter (DM) production from the decay of the oscillating inflaton condensation. If the reheating temperature after inflation is higher than the inflaton mass, which is of the same order of the momentum of the ...
Takeo Moroi, Wen Yin
doaj +1 more source
Noncommutative Spectral Geometry: A Short Review [PDF]
, 2013 We review the noncommutative spectral geometry, a gravitational model that combines noncommutative geometry with the spectral action principle, in an attempt to unify General Relativity and the Standard Model of electroweak and strong interactions ...
Sakellariadou, Mairi
core +2 more sources
Cosmological relaxation from dark fermion production
Journal of High Energy Physics, 2020 We consider the cosmological relaxation solution to the electroweak hierarchy problem using the fermion production as a dominant friction force. In our approach, neither super-Planckian field excursions nor a large number of e-folds arise, and scanning ...
Kenji Kadota, Ui Min, Minho Son, Fang Ye
doaj +1 more source
Dark moments for the Standard Model?
Journal of High Energy Physics, 2021 If dark matter (DM) interacts with the Standard Model (SM) via the kinetic mixing (KM) portal, it necessitates the existence of portal matter (PM) particles which carry both dark and SM quantum numbers that will appear in vacuum polarization-like loop ...
Thomas G. Rizzo
doaj +1 more source
Leptonic WIMP coannihilation and the current dark matter search strategy
Journal of High Energy Physics, 2018 We discuss the extent to which models of Weakly Interacting Massive Particle (WIMP) Dark Matter (DM) at and above the electroweak scale can be probed conclusively in future high energy and astroparticle physics experiments.
Michael J. Baker, Andrea Thamm
doaj +1 more source
Generalized blind spots for dark matter direct detection in the 2HDM
Journal of High Energy Physics, 2020 In this paper we study the presence of generalized blind spots, i.e. regions of the parameter space where the spin-independent cross section for dark matter direct detection is suppressed, in the context of a generic 2HDM and a minimal fermionic Higgs ...
M. E. Cabrera +3 more
doaj +1 more source
Systematizing the effective theory of self-interacting dark matter
Journal of High Energy Physics, 2020 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
Journal of High Energy Physics, 2021 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
Journal of High Energy Physics, 2021 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