Results 41 to 50 of about 298 (147)
An Expanded Set of Los Alamos OPLIB Tables in MESA: Type-1 Rosseland-mean Opacities and Solar Models
The Astrophysical JournalWe present a set of 1194 Type-1 Rosseland-mean opacity tables for four different metallicity mixtures. These new Los Alamos OPLIB atomic radiative opacity tables are an order of magnitude larger in number than any previous opacity table release, and span
Ebraheem Farag +13 more
doaj +1 more source
Journal of Geophysical Research: Space Physics, Volume 129, Issue 5, May 2024.Abstract Terrestrial Gamma Ray Flashes (TGFs) are short bursts of gamma rays occurring during thunderstorms. They are believed to be produced by Relativistic Runaway Electron Avalanches (RREAs). In this paper, we present a new numerical model based on the Particle‐In‐Cell (PIC) method to simulate the interactions between the electromagnetic fields and ...
P. Gourbin, S. Celestin
wiley +1 more source
Nuclear astrophysicists at war
Natural Sciences, Volume 4, Issue 1, January 2024.The Manhattan program not only opened the path to the nuclear age for humans, but also triggered a lot of new questions and research directions in nuclear physics and astrophysics that still inform the ideas in these fields today. Abstract The question of energy production in stars stimulated an entire generation of young physicists in the 1930s who ...
Michael Wiescher, Karlheinz Langanke
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The solar neutrino problem and solar neutrino oscillations in vacuum and in matter
, 2008 The solar neutrino problem is reviewed and the possible vacuum oscillation and MSW solutions of the problem are considered.
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Oscillation solutions to solar neutrino problem [PDF]
Nuclear Physics B - Proceedings Supplements, 2000 The current status of oscillation solutions to the Solar Neutrino Problem is reviewed. Four oscillation solutions are discussed in the light of 708d Superkamiokande data: MSW, Just-So VO, VO with Energy-Independent Suppression (EIS) and Resonant-Spin-Flavor-Precession (RSFP).
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Nuclear Aspects of the Solar Neutrino Problem
Astrophysics and Space Science, 1997 11 pages, LaTeX (uses kluwer.sty, included), plus 3 figures added as postscript files, to appear in Proceedings of the Sixth UN/ESA Workshop on Basic Space Science: Ground-based and Space-borne Astronomy, Bonn, Germany, 9-13 September 1996, Editors: H.J. Haubold and P.G.
Oberhummer, H. +3 more
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The photodissociation of 8B and the solar neutrino problem [PDF]
Nuclear Physics A, 1995 The extraction of the photodissociation cross sections of $^8B$ from Coulomb dissociation experiments is investigated. A careful study is done on the contributions of the E1, E2 and M1 multipolarities to the breakup. A comparison with the data of a recent experiment is performed. It is shown that the extraction of the radiative capture cross sections $^
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Neutrino Oscillations and the Solar Neutrino Problem [PDF]
, 2001 I describe the current status of the solar neutrino problem, summarizing the arguments that its resolution will require new particle physics. The phenomenon of matter-enhanced neutrino oscillations is reviewed. I consider the implications of current experiments -- including the SuperKamiokande atmospheric and LSND measurements -- and the need for ...
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Towards the solution of the solar neutrino problem [PDF]
Nuclear Physics B - Proceedings Supplements, 1999 We discuss various aspects of the solar neutrino spectrum distortion and time variations of fluxes. (i) Oscillations of neutrinos which cross the mantle and the core of the Earth can be parametrically enhanced. The parametric effect gives correct physical interpretation of the calculated day-night asymmetry.
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ON THE ROAD TO THE SOLUTION OF THE SOLAR NEUTRINO PROBLEM [PDF]
Relativistic Aspects of Nuclear Physics, 1996 The present status of solar neutrino experiments is reviewed. The discrepancy between the experimental results and the theoretical expectations has come to be known as the Solar Neutrino Problem. Possible solutions to this problem are discussed. The next generation of solar neutrino experiments are described.
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