Results 81 to 90 of about 99,563 (256)

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

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

TeV Right-handed Neutrinos and the Flavor-symmetry-improved Seesaw Mechanism [PDF]

, 1996
Horizontal flavor symmetries can drastically suppress Dirac neutrino masses well below those of the corresponding charged leptons. We show that models can be constructed where the light neutrino mass eigenvalues are small enough to give the MSW solution ...
Affleck, Bahcall, Berezhiani, Binétruy, Carone, Carone, Carone, Christopher D. Carone, Cvetic, Cvetic, Davidson, Dine, Dine, Fukugita, Gaillard, Gell-Mann, Grossman, Gruwe, Gyuk, Hall, Hitoshi Murayama, Kawasaki, Lyth, Nir, Yanagida   +24 more
core   +2 more sources

The Solar Neutrino Problem—A Progress(?) Report

, 1973
The conflict between observation and theoretical prediction of the flux of electron neutrinos from the sun has advanced in the past year from being merely difficult to understand to being impossible to live with.
V. Trimble, F. Reines
semanticscholar   +1 more source

THE CHARGED NEUTRINO: A NEW APPROACH TO THE SOLAR NEUTRINO PROBLEM [PDF]

Modern Physics Letters A, 1994
We have considered the effect of the reduction of the solar neutrino flux on earth due to the deflection of the charged neutrino by the magnetic field of the solar convective zone. The antisymmetry of this magnetic field about the plane of the solar equator induces the anisotropy of the solar neutrino flux thus creating the deficit of the neutrino ...
A. Yu. Ignatiev, Girish C. Joshi
openaire   +3 more sources

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

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

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

Mixing and the solar neutrino problem

The Astrophysical Journal, 1990
Evolutionary sequences for the sun were calculated assuming continuous or episodic mixing of matter in the solar interior. The ad hoc mixing affects solar neutrino emission because it increases the interior H-1 and He-3 content and reduces the temperature at the solar center.
R. Sienkiewicz, John N. Bahcall, B. Paczyński   +2 more
openalex   +3 more sources