Results 81 to 90 of about 22,766 (290)

Faint and Extended Galaxies as Probes for Understanding the Nature of Dark Matter Particles

International Journal of High Energy Physics
This study delves into the complex nature of dark matter, a fundamental yet poorly understood component of the universe that constitutes approximately 27% of its total mass-energy content. By focusing on faint and extended galaxies specifically dwarf galaxies and low surface brightness galaxies this research aims to elucidate the properties of dark ...
openaire   +1 more source

Detecting particle dark matter signatures by cross-correlating γ-ray anisotropies with weak lensing [PDF]

, 2016
The underlying nature of dark matter still represents one of the fundamental questions in contemporary cosmology. Although observations well agree with its description in terms of a new fundamental particle, neither direct nor indirect signatures of its ...
Camera, S., Regis, M., Fornengo, N., Fornasa, M.   +3 more
core   +1 more source

Nanoengineered Binetworks in Multifunctional Anionic Block Polymer Mesoblends for Improved Mechanical Properties

Advanced Functional Materials, EarlyView.
Mesoblends consist of a nanostructured polymer into which a second polymer is imbibed with a selective solvent. In this work, a solvent‐templatable pentablock terpolymer possessing a sulfonated midblock is modified with a hydrophilic polymer that is photocrosslinked in situ, yielding a hierarchical binetwork.
Kacie M. Wells, Ivan Kuzmenko, Reza A. Ghiladi, Richard J. Spontak   +3 more
wiley   +1 more source

Probing invisible dark photon models via atmospheric collisions

Journal of High Energy Physics
Atmospheric collisions can copiously produce dark sector particles in the invisible dark photon model, leading to detectable signals in underground neutrino detectors.
Mingxuan Du, Rundong Fang, Zuowei Liu, Wenxi Lu, Zicheng Ye   +4 more
doaj   +1 more source

Is the dark matter particle its own antiparticle?

, 2016
We propose a test based on direct detection data that allows to determine if the dark matter particle is different from its antiparticle. The test requires the precise measurement of the dark matter spin-independent direct detection cross sections off ...
Yaguna, C., Queiroz, F., Rodejohann, W., Werner Rodejohann, Carlos E. Yaguna, Farinaldo S. Queiroz   +5 more
core   +1 more source

Mechanoluminescent HOF Nanotransducers Enabled Sono‐Optogenetics in Parkinsonian Rats

Advanced Functional Materials, EarlyView.
We present a mechanoluminescent system utilizing porous hydrogen‐bonded organic frameworks (HOFs) as a toolkit for focused ultrasound‐triggered, non‐invasive light delivery to the deep brain in rats. This approach enables the specific activation of PV‐GPe neurons in dopamine‐depleted Parkinson's disease rat models, resulting in a comparable alleviation
Wenliang Wang, Ilya Pyatnitskiy, Yanshu Shi, Kai Wing Kevin Tang, Yi Xie, Sihan Yu, Thomas Wynn, Xiangping Liu, Ju‐Chun Hsieh, Jinmo Jeong, Weilong He, Brinkley Artman, Anakaren Romero Lozano, Xi Shi, Arjun Sangani, Lief E Fenno, Samantha Santacruz, Banglin Chen, Huiliang Wang   +18 more
wiley   +1 more source

Unitarization of the Sommerfeld enhancement through the renormalization group

Journal of High Energy Physics
When a pair of dark matter particles interacts via a long-range force mediated by a light particle, their nonrelativistic annihilation cross section can be significantly enhanced — a phenomenon known as the Sommerfeld enhancement.
Yuki Watanabe
doaj   +1 more source

Low‐Profile, High‐Gain GRIN RF Lenses via Multi‐Material Vat Photopolymerization

Advanced Functional Materials, EarlyView.
We investigate the opportunity of leveraging multi‐material vat photopolymerization printing to manufacture intricate lenses exhibiting permittivity gradients that can increase signal gain in transmitted radiofrequency signals in the X‐ and Ku‐bands. Lenses produced with more distinct low‐loss materials (up to 5) can deliver an 18 dB signal gain with a
Lawrence Romangsuriat, Alexander Peraire‐Bueno, A. John Hart, Randall M. Erb   +3 more
wiley   +1 more source

Scattering of non-relativistic finite-size particles and puffy dark matter direct detection

Journal of High Energy Physics
In this work we consider the scattering between non-relativistic particles with different finite sizes. We first calculate their interaction potential and apply the partial wave method to obtain their scattering cross section.
Wu-Long Xu, Jin Min Yang, Jun Zhao
doaj   +1 more source

Searching for Dark Matter with the ATLAS Detector

, 2022
Dark matter’s presence can be inferred from gravitational interactions and astrophysical observations, but its nature is still unknown. If dark matter is a particle, then we hope to complement these observations from space and understand its nature and ...
Tovey, Dan, Doglioni, Caterina
core   +1 more source