Results 51 to 60 of about 24,404 (180)

Solar Models with Helioseismic Constraints and the Solar Neutrino Problem [PDF]

open access: yes, 2000
Imposing a constraint of the sound-speed profile determined from helioseismology and updating the microphysics, we have revised our seismic solar model, constructed with the assumption of a homogeneous metal abundance distribution, and have shown that ...
Shibahashi, Hiromoto, Watanabe, Satoru
core   +3 more sources

G-modes and the solar neutrino problem [PDF]

open access: yesThe Astrophysical Journal, 1993
We show that low-order g-modes with large enough amplitudes to affect significantly the solar neutrino fluxes would produce surface velocities that are $10^4$ times larger than the observed upper limits and hence are ruled out by existing data. We also demonstrate that any large-amplitude, short-period oscillations that grow on a Kelvin-Helmholtz time ...
Bahcall, John N., Kumar, Pawan
openaire   +2 more sources

Laboratory Magnetoplasmas as Stellar-like Environment for 7Be β-Decay Investigations Within the PANDORA Project

open access: yesUniverse
Laboratory magnetoplasmas can become an intriguing experimental environment for fundamental studies relevant to nuclear astrophysics processes. Theoretical predictions indicate that the ionization state of isotopes within the plasma can significantly ...
Eugenia Naselli   +7 more
doaj   +1 more source

Recent Developments in Halide Perovskite Nanocrystals for Indirect X‐ray Detection

open access: yesAdvanced Materials Technologies, Volume 9, Issue 20, October 21, 2024.
Perovskite nanocrystals act as scintillators under X‐ray illumination with different conversion yield, stability, or decay times and outperform commercial materials, depending on their composition, host matrix, and luminescence process. Besides the lead halide perovskites, there are lead‐free alternatives providing self‐trapped exciton emission ...
Olexiy Balitskii   +2 more
wiley   +1 more source

Casimir energy stabilization of Standard Model landscape in dark dimension

open access: yesJournal of High Energy Physics
In this paper we present a realization of the dark dimension. We consider the 5D Standard Model coupling to gravity with one dimension compactified on an orbifold, which is seen as the dark dimension of size R.
Chuanxin Cui, Sirui Ning
doaj   +1 more source

A Supersymmetric Solution to the Solar and Atmospheric Neutrino Problems [PDF]

open access: yes, 2000
The simplest unified extension of the Minimal Supersymmetric Standard Model with bi-linear R--Parity violation provides a predictive scheme for neutrino masses which can account for the observed atmospheric and solar neutrino anomalies in terms of bi ...
A. Akeroyd   +37 more
core   +3 more sources

Smart mechanoluminescent phosphors: A review of zinc sulfide‐based materials for advanced mechano‐optical applications

open access: yesResponsive Materials, Volume 2, Issue 3, August 2024.
Zinc sulfide is a smart luminescent material with exceptionally outstanding mechanoluminescence properties. After over a century of research, it is now widely used in wearable devices, auxiliary lighting, stress sensing, anti‐counterfeiting, and other fields.
Zefeng Huang   +14 more
wiley   +1 more source

Just-So Oscillation: as Just as MSW?

open access: yes, 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   +47 more
core   +1 more source

Resonance spin flavour precession and solar neutrinos [PDF]

open access: yes, 1999
We examine the prospects for the resonance spin flavour precession as a solution to the solar neutrino problem. We study seven different realistic solar magnetic field profiles and, by numerically integrating the evolution equations, perform a fit of the
Akhmedov   +54 more
core   +2 more sources

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