Results 101 to 110 of about 126,591 (192)

Mini Z' Burst from Relic Supernova Neutrinos and Late Neutrino Masses

open access: yes, 2006
In models in which neutrinos are light, due to a low scale of symmetry breaking, additional light bosons are generically present. We show that the interaction between diffuse relic supernova neutrinos (RSN) and the cosmic background neutrinos, via ...
A. Mirizzi   +21 more
core   +1 more source

FeCu/MWCNT Nanocomposite with a Broad Microwave Absorption Band and Highly Reduced Radar Cross Section and Farfield

open access: yesAdvanced Electronic Materials, Volume 11, Issue 15, September 18, 2025.
FeCu bimetallic nanoparticles were synthesized using coprecipitation method. FeCu bimetallic nanoparticles decorated onto the MWCNT's sidewall with different weight ratios to produce novel FeCu/MWCNT nanocomposites. The results showed that a thin nanocomposite exhibited a broad absorption band with coverage of entire frequency bands.
Fahimeh Zare‐Nazari   +3 more
wiley   +1 more source

Hadronic Models of the Fermi Bubbles: Future Perspectives

open access: yesGalaxies, 2018
The origin of sub-TeV gamma rays detected by Fermi-LAT from the Fermi bubbles at the Galactic center is still unknown. In a hadronic model, acceleration of protons and/or nuclei and their subsequent interactions with gas in the bubble volume can produce ...
Soebur Razzaque, Lili Yang
doaj   +1 more source

Compressibility Function and Speed of Sound in the Non‐Commutative Quantum Hadrodynamics Type‐I Model for Neutron Stars

open access: yesAstronomische Nachrichten, Volume 346, Issue 7-8, September 2025.
ABSTRACT We investigate the effects of a minimal measurable length on neutron stars, within the quantum hadrodynamics (QHD‐I) model modified by the Generalized Uncertainty Principle (GUP). Working in a deformed Poisson algebra framework, we incorporate GUP effects via a time‐invariant transformation of the phase space volume, effectively reducing the ...
João Gabriel Galli Gimenez   +2 more
wiley   +1 more source

Can LSND and SuperKamiokande be explained by radiative decays of muons-neutrinos?

open access: yes, 1999
The radiative decay of muon-neutrinos in matter with a scheme of mass-degenerate neutrinos could be the common origin of the appearance of anti-electron-neutrinos at LSND and the disappearance of muons-neutrinos at SuperKamiokande.
Vannucci, F.
core  

Monitoring Fracture Hydromechanical Evolution in the Lab and Field Using Unsupervised Metric Learning

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 3, September 2025.
Abstract Fractures evolve in time through thermal‐hydraulic‐mechanical‐chemical (THMC) processes that alter their long‐range hydraulic transport properties and modify subsurface behavior and activities. The location of subsurface fractures makes it necessary to use remote sensing techniques such as passive or active seismic monitoring for fracture ...
David D. Nolte   +2 more
wiley   +1 more source

Searching for Hadronic Signatures in the Time Domain of Blazar Emission: The Case of Mrk 501

open access: yesUniverse
Blazars—a subclass of active galaxies—are intrinsically time-variable broadband sources of electromagnetic radiation. In this contribution, we explored relativistic proton (hadronic) signatures in the time domain blazar emission and searched for those ...
Margaritis Chatzis   +3 more
doaj   +1 more source

Excitation of the nonresonant streaming instability around sources of ultrahigh-energy cosmic rays

open access: yesAstronomy & Astrophysics
Aims. The interpretation of the ultrahigh-energy cosmic-ray (UHECR) spectrum and composition suggests a suppression of the flux below ≈1 EeV, as observed by the Pierre Auger Observatory and Telescope Array.
Cermenati Alessandro   +3 more
doaj   +1 more source

Antineutrinos from nuclear reactors: recent oscillation measurements

open access: yesNew Journal of Physics, 2015
Nuclear reactors are the most intense man-made source of antineutrinos, providing a useful tool for the study of these particles. Oscillation due to the neutrino mixing angle ${{\theta }_{13}}$ is revealed by the disappearance of reactor ${{\bar{\nu }}_ ...
D A Dwyer
doaj   +1 more source

Supernova Relic Electron Neutrinos and anti-Neutrinos in future Large-scale Observatories

open access: yes, 2007
We investigate the signal from supernova relic neutrinos in future large scale observatories, such as MEMPHYS (UNO, Hyper-K), LENA and GLACIER, at present under study.
Volpe, C., Welzel, J.
core   +1 more source

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