Results 41 to 50 of about 279,875 (165)

Dark matter from a conformal Dark Sector

Journal of High Energy Physics, 2023
We consider theories in which a dark sector is described by a Conformal Field Theory (CFT) over a broad range of energy scales. A coupling of the dark sector to the Standard Model breaks conformal invariance.
Sungwoo Hong, Gowri Kurup, Maxim Perelstein   +2 more
doaj   +1 more source

Troubles mounting for multipolar dark matter

Journal of High Energy Physics
In this paper, we revisit the experimental constraints on the multipolar dark matter that has derivative coupling to the visible sector mediated by the Standard Model photon.
Debajit Bose, Debtosh Chowdhury, Poulami Mondal, Tirtha Sankar Ray   +3 more
doaj   +1 more source

Weak Gravitational Lensing as a Method to Constrain Unstable Dark Matter

, 2010
The nature of the dark matter remains a mystery. The possibility of an unstable dark matter particle decaying to invisible daughter particles has been explored many times in the past few decades.
Wang, Mei-Yu, Zentner, Andrew R.
core   +1 more source

Millicharged particles from proton bremsstrahlung in the atmosphere

Journal of High Energy Physics
Light millicharged particles can be copiously produced from meson decays in cosmic ray collisions with the atmosphere, leading to detectable signals in large underground neutrino detectors.
Mingxuan Du, Rundong Fang, Zuowei Liu
doaj   +1 more source

Quantum theory of dark matter scattering

Journal of High Energy Physics, 2023
Dark matter self-scattering is one of key ingredients for small-scale structure of the Universe, while dark matter annihilation is important for the indirect measurements. There is a strong correlation between the velocity-dependent self-scattering cross
Ayuki Kamada, Takumi Kuwahara, Ami Patel
doaj   +1 more source

Novel constraints on the particle nature of dark matter from stellar streams [PDF]

, 2021
Nilanjan Banik, Jo Bovy, Gianfranco Bertone, Denis Erkal, Thomas de Boer   +4 more
openalex   +1 more source

Perturbative unitarity violation in radiative capture transitions to dark matter bound states

Journal of High Energy Physics
We investigate the formation of bound states of non-relativistic dark matter particles subject to long-range interactions through radiative capture.
Martin Beneke, Tobias Binder, Lorenzo De Ros, Mathias Garny, Stefan Lederer   +4 more
doaj   +1 more source

Gamma rays from dark matter

, 2010
A leading hypothesis for the nature of the elusive dark matter are thermally produced, weakly interacting massive particles that arise in many theories beyond the standard model of particle physics.
Bringmann, Torsten
core   +1 more source

How to search for mirror stars with Gaia

Journal of High Energy Physics, 2022
We show for the first time how to conduct a direct search for dark matter using Gaia observations. Its public astrometric data may contain the signals of mirror stars, exotic compact objects made of atomic dark matter with a tiny kinetic mixing between ...
Aaron Howe, Jack Setford, David Curtin, Christopher D. Matzner   +3 more
doaj   +1 more source

Revisiting the decoupling limit of the Georgi-Machacek model with a scalar singlet

Journal of High Energy Physics
We study the connection between collider and dark matter phenomenology in the singlet extension of the Georgi-Machacek model. In this framework, the singlet scalar serves as a suitable thermal dark matter (DM) candidate. Our focus lies on the region v χ <
Geneviève Bélanger, Juhi Dutta, Rohini M. Godbole, Sabine Kraml, Manimala Mitra, Rojalin Padhan, Abhishek Roy   +6 more
doaj   +1 more source