Results 61 to 70 of about 945 (139)

Reconciling large- and small-scale structure in Twin Higgs models

Journal of High Energy Physics, 2017
We study possible extensions of the Twin Higgs model that solve the Hierarchy problem and simultaneously address problems of the large- and small-scale structures of the Universe.
Valentina Prilepina, Yuhsin Tsai
doaj   +1 more source

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

Journal 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, M. M. Sori, I. F. Pamerleau   +2 more
wiley   +1 more source

Direct detections of Majorana dark matter in vector portal

Journal of High Energy Physics, 2019
In this paper we investigate the direct detections of Majorana dark matter (MDM) in vector portal. Considering that the tree-level scattering cross sections in these models are either dark matter velocity suppressed or spin-dependent, we calculate ...
Wei Chao
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

Journal 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

Fundamental Poloidal Wave Event Extending From Midnight to Dawn

Journal 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, Michael D. Hartinger, Kiyokazu Koga   +2 more
wiley   +1 more source

The new νMSM (ννMSM): radiative neutrino masses, keV-scale dark matter and viable leptogenesis with sub-TeV new physics

Journal of High Energy Physics, 2018
We study the scenario in which the Standard model is augmented by three generations of right-handed neutrinos and a scalar doublet. The newly introduced fields share an odd charge under a ℤ2 parity symmetry.
Sven Baumholzer, Vedran Brdar, Pedro Schwaller   +2 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

Early 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, Lisa Dikomitis, Abdul Jalil Khan, Mian Mukhtar ul Haq Azeemi, Muhammad Firaz Khan, Saima Sheikh, Nishani Fonseka, Abbie Milner, Syed Muhammad Uzair Shah, Ishfaq Tariq Azeemi, Shumaila Hamid, Syeda Fatima Jamal, Aimee Sargeant, Saeed Farooq   +13 more
wiley   +1 more source

Two-mediator dark matter models and cosmic electron excess

Journal of High Energy Physics, 2019
The cosmic electron energy spectrum recently observed by the DAMPE experiment exhibits two interesting features, including a break around 0.9 TeV and a sharp resonance near 1.4 TeV.
Xuewen Liu, Zuowei Liu, Yushan Su
doaj   +1 more source

Clockworking FIMPs

Journal of High Energy Physics, 2018
We study freeze-in dark matter production in models that rely on the Clock-work mechanism to suppress the dark matter couplings to the visible sector. We construct viable scalar and fermionic dark matter models within this “Clockwork FIMP” scenario, with
Andreas Goudelis, Kirtimaan A. Mohan, Dipan Sengupta   +2 more
doaj   +1 more source

Detection of early-universe gravitational-wave signatures and fundamental physics. [PDF]

Gen Relativ Gravit, 2022
Caldwell R, Cui Y, Guo HK, Mandic V, Mariotti A, No JM, Ramsey-Musolf MJ, Sakellariadou M, Sinha K, Wang LT, White G, Zhao Y, An H, Bian L, Caprini C, Clesse S, Cline JM, Cusin G, Fornal B, Jinno R, Laurent B, Levi N, Lyu KF, Martinez M, Miller AL, Redigolo D, Scarlata C, Sevrin A, Haghi BSE, Shu J, Siemens X, Steer DA, Sundrum R, Tamarit C, Weir DJ, Xie KP, Yang FW, Zhou S.   +37 more
europepmc   +1 more source