Results 81 to 90 of about 189,045 (244)

Quantification of Perturbation to the Daytime Lower Ionosphere From a Gamma Ray Burst Using ELF Remote Sensing

open access: yesGeophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract On 9 October 2022, a powerful gamma ray burst (GRB), GRB221009A, caused significant changes in the electron density of the lower ionosphere, as evidenced by VLF (3–30 kHz) radio wave observations. However, GRB221009A did not yield any observable signatures at the Schumann resonances (∼8, ∼14 Hz), which are also sensitive to the lower ...
M. Gołkowski   +8 more
wiley   +1 more source

Background radiation from sterile neutrino decay and reionization

open access: yes, 2005
Sterile neutrinos are one of the most promising Warm Dark Matter candidates. By considering their radiative- and pion-decay channels, we derive the allowed contribution of sterile neutrinos to the X-ray, optical and near-infrared cosmic backgrounds.
A. Ferrara   +3 more
core   +1 more source

Cosmic Ray Counting Variability From Water‐Cherenkov Detectors as a Proxy of Stratospheric Conditions in Antarctica

open access: yesEarth and Space Science, Volume 12, Issue 11, November 2025.
Abstract This work examines atmospheric effects on cosmic ray counts observed by a Water‐Cherenkov detector at the Argentine Antarctic Marambio Station. We analyze the influence of ground‐level barometric pressure and geopotential height at various pressure levels on daily particle rates, finding the strongest association at 100 hPa, linked to ...
N. A. Santos   +7 more
wiley   +1 more source

Neutrino oscillometry

open access: yesNuclear Physics B - Proceedings Supplements, 2010
Neutrino oscillations are studied employing sources of low energy monoenergetic neutrinos following electron capture by the nucleus and measuring electron recoils. Since the neutrino energy is very low the oscillation length appearing in this electronic neutrino disappearance experiment can be so small that the full oscillation can take place inside ...
Vergados, J. D.   +2 more
openaire   +2 more sources

Probing leptogenesis with GeV-scale sterile neutrinos at LHCb and BELLE II

open access: yes, 2014
We show that existing laboratory experiments have the potential to unveil the origin of matter by probing leptogenesis in the type-I seesaw model with three right-handed neutrinos and Majorana masses in the GeV range. The baryon asymmetry is generated by
Canetti, Laurent   +2 more
core   +1 more source

Impairments on the Construction of a Cosmic Neutrino Detector in a Romanian Salt Mine

open access: yesNatural Sciences, Volume 5, Issue 4, October 2025.
The modulus of the transfer function of an antenna when boreholed in salt. With red are represented results from the Targu Ocna salt mine and with black‐from Slanic salt mine ABSTRACT Indirect cosmic neutrino detectors utilize dense media to enhance the likelihood of neutrino interactions within the detection volume.
A. M. Badescu
wiley   +1 more source

Low-energy (anti)neutrino physics with Borexino: Neutrinos from the primary proton-proton fusion process in the Sun

open access: yes, 2014
The Sun is fueled by a series of nuclear reactions that produce the energy that makes it shine. The primary reaction is the fusion of two protons into a deuteron, a positron and a neutrino.
Avanzini, M.   +93 more
core   +5 more sources

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

Solar Neutrinos [PDF]

open access: yesAdvances in High Energy Physics, 2013
The study of solar neutrinos has given a fundamental contribution both to astroparticle and to elementary particle physics, offering an ideal test of solar models and offering at the same time relevant indications on the fundamental interactions among particles.
V. Antonelli   +3 more
openaire   +5 more sources

Ultrahigh energy neutrinos from high-redshift electromagnetic cascades [PDF]

open access: hybrid, 2022
AmirFarzan Esmaeili   +3 more
openalex   +1 more source

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