Results 161 to 170 of about 43,670,075 (292)

Early matter domination from a dark photon at colliders [PDF]

In this thesis we study the detectability at colliders of long-lived particles (LLP) which, at the early stages of the Universe, dominate its energy density and decay injecting entropy in the thermal bath, thus diluting early Universe relics.
García Sánchez, Carlos
core  

Bacillus Licheniformis‐Induced Cognitive Decline in Mice Linking Gut Microbiota Dysbiosis, Metabolic Perturbations, and Hippocampal Neuroinflammation

Advanced Science, EarlyView.
Chronic oral administration of specific probiotic strains triggers gut microbiota dysbiosis and systemic metabolic perturbations in mice. Multi‐omics profiling reveals subsequent hippocampal glial remodeling and neuroinflammation, which are linked to cognitive impairment.
Yibin Lin, Afeng Wang, Hongchang Zhou, Yuliang Sun, Yingying Guo, Keyu Chen, Junhong Sun, Tinliang Lin, Zhaochen Huang, Xinhua Qiang, Jie He, Jianlin Lou, Yunliang Yao, Shengwen Shao, Yongliang Pan, Xiang Wang   +15 more
wiley   +1 more source

Gravity-Mediated Dark Matter at a low reheating temperature

Journal of High Energy Physics
We present a new study on the Gravity-Mediated Dark Matter (GMDM) scenario, where interactions between dark matter (DM) and the Standard Model are mediated by spin-two particles.
Hyun Min Lee, Myeonghun Park, Veronica Sanz   +2 more
doaj   +1 more source

Pushing the limits of detectability: mixed dark matter from strong gravitational lenses. [PDF]

Mon Not R Astron Soc, 2023
Keeley RE, Nierenberg AM, Gilman D, Birrer S, Benson A, Treu T.   +5 more
europepmc   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss, Michael Seibt, Martin Wenderoth, Oliver Bünermann, Ole Bunjes, Till Domröse, Christian Eckel, Francesca Falorsi, Christoph Flathmann, Monica Kolek Martinez de Azagra, Matthias Krüger, Jonas Lindner, Tobias Meyer, Claus Ropers, Ulrich Ross, Kai Rossnagel, Sreeju Sreekantan Nair Lalithambika, Simone Techert, Georg A. Traeger, Cynthia Volkert, R. Thomas Weitz, Alec M. Wodtke   +21 more
wiley   +1 more source

Search for long-lived dark photons from hidden radiation at the LHC

Journal of High Energy Physics
We investigate a novel production mechanism for long-lived dark photons at the LHC, arising from hidden radiation emitted from χ in Z → χ ¯ χ $$ Z\to \overline{\chi}\chi $$ decays, where χ is a fermionic dark matter candidate.
Chuan-Ren Chen, Van Que Tran
doaj   +1 more source

P-wave Sommerfeld enhancement near threshold: a simplified approach. [PDF]

Eur Phys J C Part Fields, 2023
de Lima CH, Tonero A, Vasquez A, Rosenfeld R.   +3 more
europepmc   +1 more source

From Swarm to Individual: Emergent Individuality in Light‐Mediated Robot Collectives

Advanced Intelligent Systems, EarlyView.
Can individuality emerge from a swarm? Using nominally homogeneous phototactic robots, we show that collective light conditions reorganize robot‐level behavioral profiles. Global illumination amplifies persistent differences in state occupancy, while robot‐mounted local light cues reduce fixed differentiation and favor transient high‐switching profiles.
John Smith, Atsushi Masumori, Norihiro Maruyama, Takahide Yoshida, Takashi Ikegami   +4 more
wiley   +1 more source

Composite dark matter and neutrino masses from a light hidden sector

Journal of High Energy Physics
We study a class of models in which the particle that constitutes dark matter arises as a composite state of a strongly coupled hidden sector. The hidden sector interacts with the Standard Model through the neutrino portal, allowing the relic abundance ...
Aqeel Ahmed, Zackaria Chacko, Niral Desai, Sanket Doshi, Can Kilic, Saereh Najjari   +5 more
doaj   +1 more source

Dark Matter in the Heavens and at Colliders: Models and Constraints

, 2012
In this dissertation, we investigate various aspects of dark matter detection and model building. Motivated by the cosmic ray positron excess observed by PAMELA, we construct models of decaying dark matter to explain the excess. Specifically we present an explicit, TeV-scale model of decaying dark matter in which the approximate stability of the dark ...
openaire   +2 more sources