Results 21 to 30 of about 99,563 (256)

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

The Solar Neutrino Problem as Evidence of New Interaction [PDF]

open access: yesJournal 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

Four-neutrino oscillations and the solar neutrino problem [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2001
We perform a fit of solar neutrino data in the framework of the two four-neutrino schemes that are compatible with the results of all neutrino oscillation experiments. These schemes allow simultaneous transitions of solar nu_e's into active nu_mu's, nu_tau's and sterile nu_s. The data imply that the SMA solution is valid for any combination of nu_e->
Giunti, C.   +2 more
openaire   +5 more sources

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

Constraining alternative gravity theories using the solar neutrino problem [PDF]

open access: yes, 2013
The neutrino flavor oscillation is studied in some classes of alternative gravity theories in a plane specified by θ = π/2, exploiting the spherical symmetry and general equations for oscillation phases are given.
S. Chakraborty
semanticscholar   +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

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