Results 1 to 10 of about 52 (52)

The Relevance of Nuclear Reactions for Standard Solar Models Construction

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The fundamental processes by which nuclear energy is generated in the Sun have been known for many years. However, continuous progress in areas such as neutrino experiments, stellar spectroscopy and helioseismic data and techniques requires ever more ...
Francesco L. Villante   +3 more
doaj   +1 more source

Statistical significance of the sterile-neutrino hypothesis in the context of reactor and gallium data

open access: yesJournal of High Energy Physics, 2022
We evaluate the statistical significance of the 3+1 sterile-neutrino hypothesis using ν e and ν ¯ $$ \overline{\nu} $$ e disappearance data from reactor, solar and gallium radioactive source experiments.
Jeffrey M. Berryman   +4 more
doaj   +1 more source

Implications of the Dark-LMA solution for neutrino mass matrices

open access: yesNuclear Physics B, 2021
In this work we have re-investigated two different kinds of texture zero ansatz of the low energy neutrino mass matrix in view of the Dark-Large-Mixing-Angle (DLMA) solution of the solar neutrino problem which can arise in the presence of non-standard ...
Monojit Ghosh   +2 more
doaj   +1 more source

Neutrinos and Asteroseismology of Stars over the Helium Flash

open access: yesThe Astrophysical Journal, 2023
The helium flash, occurring in stars of 0.6–2.0 M _⊙ at the end of the red giant branch, is not observable via optical means due to the energy of the process being used to lift the core out of degeneracy.
Diogo Capelo, Ilídio Lopes
doaj   +1 more source

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

Analysis of Solar Neutrino Data from Super-Kamiokande I and II

open access: yesEntropy, 2014
We are going back to the roots of the original solar neutrino problem: the analysis of data from solar neutrino experiments. The application of standard deviation analysis (SDA) and diffusion entropy analysis (DEA) to the Super-Kamiokande I and II data ...
Hans J. Haubold   +2 more
doaj   +1 more source

The Nature of Massive Neutrinos

open access: yesAdvances in High Energy Physics, 2013
The compelling experimental evidences for oscillations of solar, reactor, atmospheric, and accelerator neutrinos imply the existence of 3-neutrino mixing in the weak charged lepton current.
S. T. Petcov
doaj   +1 more source

Solar Neutrinos

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 ...
V. Antonelli   +3 more
doaj   +1 more source

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