Results 71 to 80 of about 101,723 (259)

Self Consistent Modeling of Relativistic Runaway Electron Beams Giving Rise to Terrestrial Gamma‐Rays Flashes

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

Just-So Oscillation: as Just as MSW?

, 1995
The neutrino long wavelength (just-so) oscillation is reconsidered as a solution to the solar neutrino problem. In the light of the presently updated results of the four solar neutrino experiments, the data fit in the just-so scenario substantially ...
Acker, Acker, Akhmedov, Anna Rossi, Anselmann, Bahcall, Bahcall, Bahcall, Bahcall, Bahcall, Bahcall, Bahcall, Barbieri, Barger, Barger, Berezhiani, Berezhiani, Berezinsky, Berezinsky, Bludman, Bludman, Calabresu, Castellani, Castellani, Castellani, Castellani, Cleveland, Fukuda, Glashow, Goldman, Gribov, Hata, Kajita, Kallosh, Kernan, Klypin, Krastev, Krastev, Krastev, Mikhevev, Mikheyev, Nico, Shaefer, Smirnov, Turk-Chièze, Turk-Chièze, Wolfenstein, Zurab G Berezhiani   +47 more
core   +1 more source

Solar Neutrinos and the Violation of Equivalence Principle [PDF]

, 1998
In this Brief Report, a non-standard solution to the solar neutrino problem is revisited. This solution assumes that neutrino flavors could have different couplings to gravity, hence, the equivalence principle is violated in this mechanism.
A. Halprin, A. Halprin, A. Halprin, B. T. Cleveland, B. T. Cleveland, C. Caso, E. Adelberger, E. Adelberger, E. Gates, G. L. Fogli, H. Minakata, J. N. Bahcall, J. N. Bahcall, J. N. Bahcall, J. N. Bahcall, J. N. Bahcall, J. R. Mureika, L. Wolfenstein, M. Gasperini, M. Gasperini, P. Anselmann, R. Davis, R. Davis, R. Escribano, S. Coleman, S. L. Glashow, S. P. Mikheyev, S. W. Mansour, T. Damour, T. Damour, T. K. Kuo, T. K. Kuo, V. Gavrin, W. Hampel, Y. Fukuda, Y. Fukuda   +35 more
core   +2 more sources

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
wiley   +1 more source

A Broad Set of Solar and Cosmochemical Data Indicates High C-N-O Abundances for the Solar System

The Astrophysical Journal
We examine the role of refractory organics as a major C carrier in the outer protosolar nebula and its implications for the compositions of large Kuiper Belt objects (KBOs) and CI chondrites.
Ngoc Truong, Christopher R. Glein, Jonathan I. Lunine   +2 more
doaj   +1 more source

The Solar Neutrino Problem: Neither Astrophysics Nor Oscillations? [PDF]

, 1994
There is no consistent solar model which can describe all experimental data on the solar neutrinos. The problem can be formulated essentially in a model independent way.
Smirnov, Alexei Yu.
core   +3 more sources

An Expanded Set of Los Alamos OPLIB Tables in MESA: Type-1 Rosseland-mean Opacities and Solar Models

The Astrophysical Journal
We 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, Christopher J. Fontes, F. X. Timmes, Earl P. Bellinger, Joyce A. Guzik, Evan B. Bauer, Suzannah R. Wood, Katie Mussack, Peter Hakel, James Colgan, David P. Kilcrease, Manolo E. Sherrill, Tryston C. Raecke, Morgan T. Chidester   +13 more
doaj   +1 more source

The solar LMA neutrino oscillation solution in the Zee model

, 2003
We examine the neutrino mass matrix in the version of Zee model where both Higgs doublets couple to the leptons. We show that in this case one can accommodate the large mixing angle (LMA) MSW solution of the solar neutrino problem, while avoiding maximal
Bilenky, Cheng, Fiorini, Frampton, Fukuda, Gonzalez-Garcia, Gonzalez-Garcia, Gonzalez-Garcia, Grimus, Grimus, Groom, Jarlskog, K.R.S. Balaji, Kang, Klapdor-Kleingrothaus, Konetschny, Leveille, Ma, Mituda, Petcov, Sher, Smirnov, Sobel, T. Schwetz, W. Grimus, Wolfenstein, Zee, Zee   +27 more
core   +1 more source

Three-flavor gravitationally induced neutrino oscillations and the solar neutrino problem. [PDF]

Physical Review D, Particles and fields, 1996
Some implications of the proposal that flavor nondiagonal couplings of neutrinos to gravity might resolve the solar neutrino problem are considered in the context of three neutrino flavors.
Jonas R. Mureika, Robert B. Mann
semanticscholar   +1 more source

Effect of Coulomb collisions on time variations of the solar neutrino flux

, 1999
We consider the possibility of time variations of the solar neutrino flux due to the radial motion of the Earth and neutrino interference effects. We calculate the time variations of the detected neutrino flux and the extent to which they are suppressed ...
Bahcall J. N., Bahcall J. N., L. Malyshkin, Mikheev S. P., R. Kulsrud, Stodolsky L.   +5 more
core   +3 more sources