Results 11 to 20 of about 24,333 (185)

The Solar Neutrino Problem - An Update [PDF]

open access: yesPhysics Reports, 1998
The $^8$B solar neutrino flux as measured by Super-Kamiokande is consistent with the $^{37}$Ar production rate in $^{37}$Cl at Homestake. GALLEX and SAGE, continue to observe $^{71}$Ge production rates in $^{71}$Ga that are consistent with the minimal ...
Adelberger   +46 more
core   +5 more sources

Two-Loop Neutrino Masses and the Solar Neutrino Problem [PDF]

open access: yesPhysical Review D, 1993
The addition of $m$ singlet right-handed neutrinos to the Standard Model leads to radiatively generated mass corrections for the $SU(2)_L $ doublet neutrinos.
A. B. Lahanes   +31 more
core   +7 more sources

Invisible Labor and the "Ghost Particle": Underground Physics at the Kolar Gold Fields. [PDF]

open access: yesBer Wiss
Abstract When cosmic rays—high‐energy particles from outer space—encounter the Earth's atmosphere, they produce particles called neutrinos. To detect them, physicists go underground inside deep mines where the overlying rock can filter out the cosmic‐ray background radiation.
Rao N.
europepmc   +2 more sources

Advice for a Young Scientist

open access: yesPerspectives of Earth and Space Scientists, Volume 4, Issue 1, December 2023., 2023
Abstract My career has included astrophysics and space physics, always with a theoretical emphasis. My first papers calculated nuclear reaction rates in dense stars, particularly neutron stars, but I branched out to other areas or theoretical astrophysics.
R. A. Wolf
wiley   +1 more source

Multi‐Approach Analysis of Baroclinic Internal Tide Perturbation in the Ionian Sea Abyssal Layer (Mediterranean Sea)

open access: yesGeophysical Research Letters, Volume 50, Issue 18, 28 September 2023., 2023
Abstract Despite being widely recognized, the importance of deep layers thermohaline and mixing processes in the ocean circulation and variability is still poorly investigated, especially in the Mediterranean Sea. This limits understanding and parametrizing deep dynamics, which result in evident biases in the global circulation representation by ...
B. Giambenedetti   +4 more
wiley   +1 more source

First High‐Speed Video Camera Observations of a Lightning Flash Associated With a Downward Terrestrial Gamma‐Ray Flash

open access: yesGeophysical Research Letters, Volume 50, Issue 14, 28 July 2023., 2023
Abstract In this paper, we present the first high‐speed video observation of a cloud‐to‐ground lightning flash and its associated downward‐directed Terrestrial Gamma‐ray Flash (TGF). The optical emission of the event was observed by a high‐speed video camera running at 40,000 frames per second in conjunction with the Telescope Array Surface Detector ...
R. U. Abbasi   +143 more
wiley   +1 more source

NOAA Space Weather Prediction Center Radiation Advisories for the International Civil Aviation Organization

open access: yesSpace Weather, Volume 21, Issue 7, July 2023., 2023
Abstract The National Oceanic and Atmospheric Administration's Space Weather Prediction Center (NOAA/SWPC) issues several solar radiation storm products: the long standing proton Warnings and Alerts that are based on particle intensity levels observed by the Geostationary Operational Environmental Satellites; and the more recent International Civil ...
H. M. Bain   +3 more
wiley   +1 more source

Library of Simulated Gamma‐Ray Glows and Application to Previous Airborne Observations

open access: yesJournal of Geophysical Research: Atmospheres, Volume 128, Issue 9, 16 May 2023., 2023
Abstract Gamma‐Ray Glows (GRGs) are high energy radiation originating from thunderclouds, in the MeV energy regime, with typical duration of seconds to minutes, and sources extended over several to tens of square kilometers. GRGs have been observed from detectors placed on ground, inside aircraft and on balloons.
D. Sarria   +4 more
wiley   +1 more source

Long‐Term Density Trend in the Mesosphere and Lower Thermosphere From Occultations of the Crab Nebula With X‐Ray Astronomy Satellites

open access: yesJournal of Geophysical Research: Space Physics, Volume 128, Issue 2, February 2023., 2023
Abstract We present long‐term density trends of the Earth's upper atmosphere at altitudes between 71 and 116 km, based on atmospheric occultations of the Crab Nebula observed with X‐ray astronomy satellites, ASCA, RXTE, Suzaku, NuSTAR, and Hitomi. The combination of the five satellites provides a time period of 28 years from 1994 to 2022.
Satoru Katsuda   +11 more
wiley   +1 more source

Exploring the frontiers of deep underground sciences and engineering—China Yunlong Lake Laboratory is striving to be the best

open access: yesDeep Underground Science and Engineering, Volume 1, Issue 2, Page 131-137, December 2022., 2022
General plan of the in‐situ experiment (WNS) base. Abstract This paper introduces the establishment of deep underground infrastructure for science and engineering research. First, the representative deep underground research laboratories and facilities in the world and their functions were summarized and reviewed.
Lihua Hu   +5 more
wiley   +1 more source

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