Results 61 to 70 of about 35,741 (202)

Helioseismology, solar models and solar neutrinos [PDF]

, 1999
We review recent advances concerning helioseismology, solar models and solar neutrinos. Particularly we shall address the following points: i) helioseismic tests of recent SSMs; ii)the accuracy of the helioseismic determination of the sound speed near ...
B. Ricci, Bahcall, Bahcall, Basu, Basu, Brun, Ciacio, Cleveland, Dar, Degl'Innocenti, Dziembowski, Elsworth, Fiorentini, G. Fiorentini, Harvey, Libbrecht, Pijpers, Rhodes, Ricci, Richard, Rolf, Schlattl, Turck-Chieze   +22 more
core   +2 more sources

Testing the Weak Cosmic Censorship Conjecture via Test Particle–Induced Overcharging/Overspinning of Kerr–Newman–Modified Gravity Black Hole

Advances in Astronomy, Volume 2026, Issue 1, 2026.
We examine the weak cosmic censorship conjecture (WCCC) violation by throwing a charged and rotating test particle into a Kerr–Newman–modified gravity black hole (KN–MOG BH). The result depends on several factors, such as the relative sign of the particle’s charge and its direction of rotation with respect to black hole (BH).
Waqar Ahmad, Abdul Rehman Kashif, Jose Gaite   +2 more
wiley   +1 more source

Solar neutrinos and leptonic spin forces

Journal of High Energy Physics
We quantify the effects of light spin-zero particles with pseudoscalar couplings to leptons and scalar couplings to nucleons on the evolution of solar neutrinos. In this scenario the matter potential sourced by the nucleons in the Sun’s matter gives rise
Saeed Ansarifard, M. C. Gonzalez-Garcia, Michele Maltoni, João Paulo Pinheiro   +3 more
doaj   +1 more source

Solar Neutrinos: Where We Are, Where We Are Going [PDF]

, 1994
This talk answers a series of questions. Why study solar neutrinos? What does the combined standard model (solar plus electroweak) predict for solar neutrinos? Why are the calculations of neutrino fluxes robust? What are the three solar neutrino problems?
Bahcall, John N.
core   +2 more sources

A Renormalizable Neutrino Mass Model With (Z2 × Z4)⋊Z2(II) Symmetry

Advances in High Energy Physics, Volume 2026, Issue 1, 2026.
In this work, a renormalizable neutrino mass model based on (Z2 × Z4)⋊Z2 (II) symmetry is proposed for the modification of the μ − τ reflection symmetry. The hierarchies of lepton masses can be naturally realized, and the lepton mixing is addressed.
V. V. Vien, H. N. Long, T. D. Tham, Burak Bilki   +3 more
wiley   +1 more source

Double Threefold Degeneracies for Active and Sterile Neutrinos [PDF]

, 2001
We explore the possibility that the 3 active (doublet) neutrinos have nearly degenerate masses which are split only by the usual seesaw mechanism from 3 sterile (singlet) neutrinos in the presence of a softly broken $A_4$ symmetry.
Aranda A., Copi C. J., ERNEST MA, G. RAJASEKARAN, Kobayashi M., Schechter J.   +5 more
core   +3 more sources

Spectral Analysis of Flickering Gamma‐Ray Flashes Observed During the ALOFT 2023 Campaign

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 23, 16 December 2025.
Abstract We examine a newly discovered category of high‐energy radiation events called flickering gamma‐ray flashes (FGF) detected during the airborne lightning observatory for FEGS and TGFs campaign in July 2023. These FGFs are characterized by highly pulsating gamma‐ray emissions that have no detectable concurrent optical or radio signals (Ostgaard ...
D. Sarria, N. Østgaard, I. Bjørge‐Engeland, A. Mezentsev, M. Marisaldi, N. Lehtinen, M. Stanley, T. Lang, C. Schultz, A. Fuglestad   +9 more
wiley   +1 more source

Compreendendo a oscilação dos neutrinos

Revista Brasileira de Ensino de Física
Este trabalho é uma introdução ao modelo da oscilação de neutrinos para estudantes de física. Apresentamos o modelo de mistura de neutrinos baseado no conceito de superposição de estados. Em particular, consideraremos o caso onde os neutrinos se propagam
Gustavo do A. Valdiviesso, Marcelo M. Guzzo   +1 more
doaj   +1 more source

Neutrino Physics and Astrophysics with the JUNO Detector

Universe, 2018
The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton liquid scintillator multi-purpose underground detector, under construction near the Chinese city of Jiangmen, with data collection expected to start in 2021.
Lino Miramonti
doaj   +1 more source

Implications of CHOOZ results for the decoupling of solar and atmospheric neutrino oscillations

, 1998
We have considered the results of solar and atmospheric neutrino oscillation experiments in the scheme of mixing of three neutrinos with a mass hierarchy.
Bilenky, Bilenky, Bilenky, Bilenky, C. Giunti, Fogli, Fogli, Giunti, Goswami, Hata, Kuo, Okada, S.M. Bilenky, Shi   +13 more
core   +1 more source