Results 61 to 70 of about 20,356 (164)
WIMP cogenesis for asymmetric dark matter and the baryon asymmetry
Journal of High Energy Physics, 2020 We propose a new mechanism where asymmetric dark matter (ADM) and the baryon asymmetry are both generated in the same decay chain of a metastable weakly interacting massive particle (WIMP) after its thermal freezeout.
Yanou Cui, Michael Shamma
doaj +1 more source
Meteoritics &Planetary Science, Volume 60, Issue 4, Page 795-822, April 2025.Abstract Impact‐generated hydrothermal systems and postimpact crater lake systems are well‐documented geological phenomena; however, evidence of hydrothermal venting into impact crater lake systems has rarely been reported. We investigated the well‐preserved contact between hydrothermally altered impact melt‐bearing breccia (outer/surficial suevite ...
Matthew J. O. Svensson +4 more
wiley +1 more source
How generic is cosmic string formation in SUSY GUTs
, 2003 We study cosmic string formation within supersymmetric grand unified theories. We consider gauge groups having a rank between 4 and 8. We examine all possible spontaneous symmetry breaking patterns from the GUT down to the standard model gauge group ...
A-C. Davis +73 more
core +2 more sources
Displaced lepton jet signatures from self-interacting dark matter bound states
Journal of High Energy Physics, 2019 We study self-interacting dark matter signatures at the Large Hadron Collider. A light dark photon, mediating dark matter self-interactions, can bind dark matter particles to form a bound state when they are produced via a heavy pseduoscalar in pp ...
Yuhsin Tsai, Tao Xu, Hai-Bo Yu
doaj +1 more source
Journal of High Energy Physics, 2020 We introduce leak-in dark matter, a novel out-of-equilibrium origin for the dark matter (DM) in the universe. We provide a comprehensive and unified discussion of a minimal, internally-thermalized, hidden sector populated from an out-of-equilibrium ...
Jared A. Evans +2 more
doaj +1 more source
Microfaults: Abundant shear deformation and frictional melting in chondrites
Meteoritics &Planetary Science, Volume 60, Issue 4, Page 858-868, April 2025.Abstract The majority of ordinary chondrite (OC) meteorites record some amount of textural evidence for impact‐induced deformation. Melt veins in some shocked samples have been compared to terrestrial impact‐related pseudotachylites, which form by frictional melting of host rock.
Craig R. Walton +2 more
wiley +1 more source
Primordial Neutrinos: Hot in SM-GR-$\Lambda$-CDM, Cold in SM-LGT
, 2018 We replace general relativity (GR) and the cosmological constant ($\Lambda$) in the standard cosmology (SM-GR-$\Lambda$-CDM) with a Lorentz gauge theory of gravity (LGT) and show that the standard model (SM) neutrinos can be the cold dark matter (CDM ...
Borzou, Ahmad
core +1 more source
Journal of High Energy Physics, 2017 We discuss a novel signature of dark matter production at the LHC resulting from the emission of an additional Higgs boson in the dark sector. The presence of such a dark Higgs boson is motivated simultaneously by the need to generate the masses of the ...
Michael Duerr +5 more
doaj +1 more source
Cosmological signatures of superheavy dark matter
Journal of High Energy Physics, 2020 We discuss two possible scenarios, namely the curvaton mechanism and the dark matter density modulation, where non-Gaussianity signals of superheavy dark matter produced by gravity can be enhanced and observed.
Lingfeng Li +3 more
doaj +1 more source
Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions
Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge +3 more
wiley +1 more source