Results 61 to 70 of about 21,756 (168)

Vector dark matter from split SU(2) gauge bosons

Journal 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, Chengfeng Cai, Yi-Lei Tang, Zhao-Huan Yu, Hong-Hao Zhang   +4 more
doaj   +1 more source

A toy model based analysis on the effect of the Lee-Wick partners in the evolution of the early universe

, 2012
In the present article the thermodynamic results of the Lee-Wick partner infested universe have been applied in a toy model where there is one Lee-Wick partner to each of the standard model particle and more over the longitudinal degrees of freedom of ...
Bhattacharya, Kaushik, Das, Suratna
core   +1 more source

Intrusion‐Induced Forced Folding Model for the Origin of Séítah Formation Domes on the Jezero Crater Floor, Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract The JPL rover Perseverance's investigations of Jezero crater's floor reveal that the ultramafic Séítah formation and the overlying mafic Máaz formation are deformed into a broad, low‐amplitude structural dome. Mastcam‐Z stereo images processed into digital outcrop models, together with RIMFAX ground‐penetrating radar profiles, were used to ...
Robert Barnes, Sanjeev Gupta, Allan Treiman, Steven Sholes, Gerhard Paar, Christian Tate, Andreas Bechtold, Katie Stack‐Morgan, James F. Bell III, Justin Maki, Briony Horgan, Jorge Nuñez, Chris Traxler, Thomas Ortner, Emileigh S. Shoemaker Thackston, Svein‐Erik Hamran, Sanna Alwmark, Melissa Rice, Vivian Sun, Olivier Beyssac, Andrew Annex, Adrian Brown, Linda Kah, David Flannery, Justin I. Simon, Sebastian Walter, Keyron Hickman‐Lewis, Ken Farley   +27 more
wiley   +1 more source

Conformal vector dark matter and strongly first-order electroweak phase transition

Journal of High Energy Physics, 2019
We study a conformal version of the Standard Model (SM), which apart from SM sector, containing a U D (1) dark sector with a vector dark matter candidate and a scalar field (scalon).
Seyed Yaser Ayazi, Ahmad Mohamadnejad
doaj   +1 more source

Cosmological particle production and pairwise hotspots on the CMB

Journal of High Energy Physics, 2021
Heavy particles with masses much bigger than the inflationary Hubble scale H *, can get non-adiabatically pair produced during inflation through their couplings to the inflaton. If such couplings give rise to time-dependent masses for the heavy particles,
Jeong Han Kim, Soubhik Kumar, Adam Martin, Yuhsin Tsai   +3 more
doaj   +1 more source

Indigenous Management Practices to Reduce Pests and Pathogens of Cash Crops in Agroforestry Systems

Ecology and Evolution, Volume 16, Issue 2, February 2026.
The crop with the highest damages was cocoa (63.9% plants affected by black pod disease), followed by Fusarium stem rot was the second highest damage in crops (30.0% of vanilla plants infected). Insecticides and fungicides do not have a significant impact in reducing pest and pathogen infestation.
Marco Campera, Jake Skull, Lizzie H. Morton, Charlotte A. Grant, Diogo De Almeida Santos, Dylan Wimble, Aislinn Olthoff, Lilli Stenger, Joel Bowden‐Pickstock, I. Made Setiawan, I. Ketut Maliawan, Angel Sangha, Jessica Chavez, Mia Garza, Jenna Sleath‐Probets, Aikaterina Karageorgiadi, Made Dwi Sadnyana, I. Putu Leo Ardhiyanto, Michela Balestri, Andrew K. Jones, Sophie Manson, Muhammad Syirazi, Zefanya Ajiningrat Wibowo, Kuntayuni, Vincent Nijman, Matthew W. Bulbert, Vinni Jain, Desak Ketut Tristiana Sukmadewi   +27 more
wiley   +1 more source

A feeble window on leptophilic dark matter

Journal of High Energy Physics, 2019
In this paper we study a leptophilic dark matter scenario involving feeble dark matter coupling to the Standard Model (SM) and compressed dark matter-mediator mass spectrum.
Sam Junius, Laura Lopez-Honorez, Alberto Mariotti   +2 more
doaj   +1 more source

Inert scalar dark matter in an extra dimension inspired model

, 2014
In this paper we analyze a dark matter model inspired by theories with extra dimensions. The dark matter candidate corresponds to the first Kaluza-Klein mode of a real scalar added to the Standard Model.
Lineros, R. A., Santos, F. A. Pereira dos   +1 more
core   +1 more source

Characteristics of Natural Remanence Records in Fine‐Grained Particles Returned From Asteroid Ryugu

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract Particles collected from the asteroid Ryugu by the Hayabusa2 spacecraft offer a unique opportunity to investigate the magnetic record of the primitive solar system, as any terrestrial magnetic contamination is minimal and can be accounted for.
Masahiko Sato, Yuki Kimura, Tadahiro Hatakeyama, Tomoki Nakamura, Satoshi Okuzumi, Sei‐ichiro Watanabe, Seiji Sugita, Satoshi Tanaka, Shogo Tachibana, Hisayoshi Yurimoto, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Hiroshi Naraoka, Kanako Sakamoto, Toru Yada, Masahiro Nishimura, Aiko Nakato, Akiko Miyazaki, Kasumi Yogata, Masanao Abe, Tatsuaki Okada, Tomohiro Usui, Makoto Yoshikawa, Takanao Saiki, Fuyuto Terui, Satoru Nakazawa, Yuichi Tsuda   +27 more
wiley   +1 more source

Tracing a Wet Past and Diverse Provenances in Gale Crater, Mars, With Lithium Content Using ChemCam on the Curiosity Rover

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract The incompatible behavior of Lithium during magmatic differentiation and high mobility during aqueous alteration make it a valuable tracer of crustal processes on Mars. Its preferential incorporation into secondary phyllosilicates further links Li to clay‐forming environments, which are critical for evaluating past aqueous activity and ...
K. W. Nikolajsen, J. Frydenvang, E. Dehouck, R. C. Wiens, P. J. Gasda, L. Le Deit, G. Caravaca, C. C. Bedford, A. Ollila, A. Cousin, S. Maurice, O. Gasnault, N. L. Lanza   +12 more
wiley   +1 more source