Results 81 to 90 of about 88,834 (168)

Earth-scattering induced modulation in low-threshold dark matter experiments

Journal of High Energy Physics
Dark matter particles with sufficiently large interactions with ordinary matter can scatter in the Earth before reaching and scattering in a detector. This induces a modulation in the signal rate with a period of one sidereal day.
Xavier Bertou, Ansh Desai, Timon Emken, Rouven Essig, Tomer Volansky, Tien-Tien Yu   +5 more
doaj   +1 more source

Kinetic model for dark energy—dark matter interaction: Scenario for the hubble tension

Physics of the Dark Universe
We analyze a model for Dark Energy - Dark Matter interaction, based on a decaying process of the former into the latter. The dynamical equations are constructed following a kinetic formulation, which separates the interacting fluctuations from an equilibrium distribution of both species.
Giovanni Montani, Nakia Carlevaro, Luis A. Escamilla, Eleonora Di Valentino   +3 more
openaire   +2 more sources

New channel to search for dark matter at Belle II

Journal of High Energy Physics
We propose a new “disappearing positron track” channel at Belle II to search for dark matter, in which a positron that is produced at the primary interaction vertex scatters with the electromagnetic calorimeter to produce dark matter particles.
Jinhan Liang, Zuowei Liu, Lan Yang
doaj   +1 more source

Production of dark photons through higher electromagnetic moments at LDMX: simulations and model discrimination

Journal of High Energy Physics
We extend the projected sensitivity of LDMX for sub-GeV dark matter (DM) to the case of dark photons produced through higher order electromagnetic moments. These moments arise from loop diagrams involving portal matter fields, along with the gauge fields
Riccardo Catena, Taylor R. Gray, Thomas Jerkvall   +2 more
doaj   +1 more source

Constraining Asymmetric Dark Matter using colliders and direct detection

Journal of High Energy Physics
We reappraise the viability of asymmetric dark matter (ADM) realized as a Dirac fermion coupling dominantly to the Standard Model fermions. Treating the interactions of such a DM particle with quarks/leptons in an effective-interactions framework, we ...
Arnab Roy, Basudeb Dasgupta, Monoranjan Guchait   +2 more
doaj   +1 more source

Vector dark matter from the 5-dimensional representation of SU(2) L

Journal of High Energy Physics
The introduction of electroweak multiplets that transform under any representation of the standard SU(2) L gauge group suggests the existence of electrically neutral stable particles capable of serving as cold dark matter in the ΛCDM cosmological model ...
Patricio Escalona, Sebastián Acevedo, Paulo Areyuna, Gonzalo Benítez-Irarrázabal, Pablo Solar, Alfonso Zerwekh   +5 more
doaj   +1 more source

Complex dark photon dark matter EFT

Journal of High Energy Physics
We construct an effective field theory for complex Stueckelberg dark photon dark matter. Such an effective construction can be realized by writing down a complete set of operators up to dimension six built with the complex dark photon and Standard Model ...
Enrico Bertuzzo, Tommaso Sassi, Andrea Tesi   +2 more
doaj   +1 more source

Freeze-in as a complementary process to freeze-out

Journal of High Energy Physics
There are many extensions of the Standard Model with a dark matter (DM) candidate obtained via the freeze-out mechanism. It can happen that after all experimental and theoretical constraints are taken into account, all parameter points have a relic ...
Rodrigo Capucha, Karim Elyaouti, Margarete Mühlleitner, Johann Plotnikov, Rui Santos   +4 more
doaj   +1 more source

Overview of the ESCAPE Dark Matter Test Science Project for astronomers. [PDF]

Open Res Eur
Pearson J, Dickinson H, Sinha S, Serjeant S.   +3 more
europepmc   +1 more source

Comparing the motion of dark matter and standard model particles on cosmological scales. [PDF]

Nat Commun
Grimm N, Bonvin C, Tutusaus I.
europepmc   +1 more source