Results 21 to 30 of about 101,723 (259)
Invisible Labor and the "Ghost Particle": Underground Physics at the Kolar Gold Fields. [PDF]
Ber WissAbstract 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
Quantum Field-Theoretical Description of Neutrino Oscillations in a Magnetic Field and the Solar Neutrino Problem [PDF]
Journal of Experimental and Theoretical Physics, 2021 The processes of neutrino oscillations in an external constant almost homogeneous magnetic field are described in the framework of a new quantum field-theoretical approach.
V. Egorov, I. Volobuev
semanticscholar +1 more source
The Relevance of Nuclear Reactions for Standard Solar Models Construction
Frontiers 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
Journal 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
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Implications of the Dark-LMA solution for neutrino mass matrices
Nuclear 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
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The Solar Neutrino Problem as Evidence of New Interaction [PDF]
Journal of Experimental and Theoretical Physics, 2019 A new concept to solve the solar neutrino problem that is based on the hypothesis about the existence of a new interaction of electron neutrinos with nucleons mediated by massless pseudoscalar bosons is proposed.
L. M. Slad
semanticscholar +1 more source
Neutrinos and Asteroseismology of Stars over the Helium Flash
The 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
Perspectives 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
Geophysical 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
Geophysical 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