Results 1 to 10 of about 107,719 (310)

Fermionic dark matter in Dynamical Scotogenic Model

Journal 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, Abhishek Roy, Sanjoy Mandal, Manimala Mitra   +3 more
doaj   +1 more source

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

Journal 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, Angelo Esposito, Rouven Essig, Mukul Sholapurkar   +3 more
doaj   +1 more source

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

Journal 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, Manuel A. Buen-Abad, Jae Hyeok Chang, Steven J. Clark, Bhaskar Dutta, Yuhsin Tsai, Tao Xu   +6 more
doaj   +1 more source

SIMPly add a dark photon

Journal 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

Enhancement of p-wave dark matter annihilation by quasi-bound states

Journal of High Energy Physics
We scrutinize the Sommerfeld enhancement in dark matter pair annihilation for p-wave and higher-ℓ partial waves. For the Yukawa potential these feature a super-resonant Breit-Wigner peak in their velocity-dependence close to Sommerfeld resonances as well
Martin Beneke, Tobias Binder, Lorenzo De Ros, Mathias Garny   +3 more
doaj   +1 more source

Search for Milli-Charged particles from the Sun at IceCube

Journal 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

The quintuplet annihilation spectrum

Journal of High Energy Physics
We extend the Effective Field Theory of Heavy Dark Matter to arbitrary odd representations of SU(2) and incorporate the effects of bound states. This formalism is then deployed to compute the gamma-ray spectrum for a 5 of SU(2): quintuplet dark matter ...
Matthew Baumgart, Nicholas L. Rodd, Tracy R. Slatyer, Varun Vaidya   +3 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

Multilepton signatures from dark matter at the LHC

Journal of High Energy Physics, 2022
Leptonic signatures of Dark Matter (DM) are one of the cleanest ways to discover such a secluded form of matter at high energy colliders. We explore the full parameter space relevant to multi-lepton (2- and 3-lepton) signatures at the Large Hadron ...
Alexander Belyaev, Ulla Blumenschein, Arran Freegard, Stefano Moretti, Dipan Sengupta   +4 more
doaj   +1 more source

Search for WIMPs at future μ + μ + colliders

Journal of High Energy Physics
Weakly interacting massive particles (WIMPs) with electroweak charges, such as the wino and the Higgsino, stand out as natural candidates for dark matter in the universe. In this paper, we study the search for WIMPs at future multi-TeV μ + μ + colliders.
Hajime Fukuda, Takeo Moroi, Atsuya Niki, Shang-Fu Wei   +3 more
doaj   +1 more source