Results 51 to 60 of about 177,126,089 (182)

Catalyzed baryogenesis

open access: yesJournal of High Energy Physics, 2021
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

Peaking Into Oberon's Past: An Isolated Peak Could Imply the Existence of a Subsurface Ocean or Convecting Ice Shell

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
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

open access: yesJournal of High Energy Physics, 2019
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

Features in the Visible Spectra of the Enceladus Particle Plume and E Ring: Potential Evidence of Organic Materials and/or Missing Sub‐Micron Particles

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
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

open access: yesJournal of High Energy Physics, 2021
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

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
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

open access: yesJournal of High Energy Physics, 2020
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

open access: yesJournal of High Energy Physics, 2021
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

Untreated Psychosis and Healthcare‐Seeking Behaviour in Pakistan: A Qualitative Study With Young People, Carers, Traditional Healers, and Healthcare Professionals

open access: yesEarly Intervention in Psychiatry, Volume 20, Issue 8, August 2026.
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]

open access: yes
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

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