Results 51 to 60 of about 177,126,089 (182)
A novel mechanism, “catalyzed baryogenesis”, is proposed to explain the observed baryon asymmetry in our universe. In this mechanism, the motion of a ball-like catalyst provides the necessary out-of-equilibrium condition, its outer wall has CP-violating ...
Yang Bai +3 more
doaj +1 more source
Abstract The Uranian moons, last visited in 1986 by Voyager 2, remain an intriguing yet under‐explored set of targets. Understanding the thermal structure and evolution of these moons is key to addressing one of the highest priority goals in planetary science: identifying if any are ocean worlds today or have been in the past. On Oberon, one feature in
M. Blanco‐Rojas +2 more
wiley +1 more source
Light fermionic WIMP dark matter with light scalar mediator
A light fermionic weakly interacting massive particle (WIMP) dark matter is investigated by studying its minimal renormalizable model, where it requires a scalar mediator to have an interaction between the WIMP and standard model particles.
Shigeki Matsumoto +2 more
doaj +1 more source
Abstract Visible spectra of the Enceladus particle plume and E ring contain evidence for a change in spectral slope around 0.5 μm. This feature can be seen in data obtained by both the Visual and Infrared Mapping Spectrometer and Imaging Science Subsystem onboard the Cassini Spacecraft, and is consistent with the slope change seen in the surface ...
M. M. Hedman, S. M. MacKenzie
wiley +1 more source
Chiral composite asymmetric dark matter
The asymmetric dark matter (ADM) scenario solves the baryon-dark matter coincidence problem when the dark matter (DM) mass is of O 1 $$ \mathcal{O}(1) $$ GeV.
Masahiro Ibe +2 more
doaj +1 more source
Fundamental Poloidal Wave Event Extending From Midnight to Dawn
Abstract Fundamental poloidal (P1) waves are a class of magnetospheric standing Alfvén waves characterized by field line oscillations in the meridional plane. P1 waves are infrequently excited in the ring current region and are believed to be the source of giant pulsations (Pgs) observed on the ground. Pgs are mostly detected on the morning side with a
Kazue Takahashi +2 more
wiley +1 more source
Neutrino dark matter and the Higgs portal: improved freeze-in analysis
Sterile neutrinos are one of the leading dark matter candidates. Their masses may originate from a vacuum expectation value of a scalar field. If the sterile neutrino couplings are very small and their direct coupling to the inflaton is forbidden by the ...
Valentina De Romeri +3 more
doaj +1 more source
Vector dark matter from split SU(2) gauge bosons
We propose a vector dark matter model with an exotic dark SU(2) gauge group. Two Higgs triplets are introduced to spontaneously break the symmetry. All of the dark gauge bosons become massive, and the lightest one is a viable vector DM candidate.
Zexi Hu +4 more
doaj +1 more source
ABSTRACT Background Prolonged delay between the onset of the first episode of psychosis (FEP) and initiation of treatment is common in lower‐ and middle‐income countries (LMICs), including Pakistan. This qualitative study explored perspectives of young persons with FEP, carers, healthcare professionals, and traditional and spiritual healers (TSHs) on ...
Noor Sanauddin +13 more
wiley +1 more source
Are $f(R, {\rm Matter})$ theories really relevant to cosmology? [PDF]
We examine $f(R, \text{Matter})$ theories that directly couple the curvature $R$ or $R_{\mu\nu}$ with the matter sector in the action, in addition to the universal coupling.
Mukohyama, Shinji +2 more
core +1 more source

