Results 31 to 40 of about 656,008 (192)
Neutrinos and Asteroseismology of Stars over the Helium Flash
The Astrophysical Journal, 2023 The helium flash, occurring in stars of 0.6–2.0 M _⊙ at the end of the red giant branch, is not observable via optical means due to the energy of the process being used to lift the core out of degeneracy.
Diogo Capelo, Ilídio Lopes
doaj +1 more source
Constraining alternative gravity theories using the solar neutrino problem [PDF]
, 2013 The neutrino flavor oscillation is studied in some classes of alternative gravity theories in a plane specified by θ = π/2, exploiting the spherical symmetry and general equations for oscillation phases are given.
S. Chakraborty
semanticscholar +1 more source
Confronting spin flavor solutions of the solar neutrino problem with current and future solar neutrino data [PDF]
, 2002 A global analysis of spin flavor precession (SFP) solutions to the solar neutrino problem is given, taking into account the impact of the full set of latest solar neutrino data, including the recent SNO data and the 1496-day Super-Kamiokande data.
J. Barranco +4 more
semanticscholar +1 more source
Global analysis with SNO: Toward the solution of the solar neutrino problem [PDF]
, 2001 We perform a global analysis of the latest solar neutrino data including the SNO result on the CC-event rate. This result further favors the LMA solution of the solar neutrino problem.
P. Krastev, A. Smirnov
semanticscholar +1 more source
The Solar Neutrino Problem [PDF]
, 1995 The solar neutrino problem has persisted for almost three decades. Recent results from Kamiokande, SAGE, and GALLEX indicate a pattern of neutrino fluxes that is very difficult to reconcile with plausible variations in standard solar models.
W. Haxton
semanticscholar +1 more source
Solar Neutrinos: Where We Are, Where We Are Going [PDF]
Astrophys.J.467:475-484,1996, 1995 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? What have we learned in the first thirty years of solar neutrino research?
arxiv +1 more source
The Nature of Massive Neutrinos
Advances in High Energy Physics, 2013 The compelling experimental evidences for oscillations of solar, reactor, atmospheric, and accelerator neutrinos imply the existence of 3-neutrino mixing in the weak charged lepton current.
S. T. Petcov
doaj +1 more source
Sensitivity of a low threshold directional detector to CNO-cycle solar neutrinos
European Physical Journal C: Particles and Fields, 2018 A first measurement of neutrinos from the CNO fusion cycle in the Sun would allow a resolution to the current solar metallicity problem. Detection of these low-energy neutrinos requires a low-threshold detector, while discrimination from radioactive ...
R. Bonventre, G. D. Orebi Gann
doaj +1 more source
Physical Review D, Particles and fields, 1986 Mikheyev and Smirnov have observed that neutrino oscillations in the Sun can be greatly enhanced through the mechanism of Wolfenstein matter oscillations. We develop a qualitative understanding of this phenomenon in the small-mixing-angle limit and carry
S. P. Rosen, J. Gelb
semanticscholar +1 more source
On the vacuum oscillation solutions of the solar neutrino problem. [PDF]
Physical Review D, Particles and fields, 1995 We study the stability of the two-neutrino vacuum oscillation solution of the solar neutrino problem with respect to changes of the total fluxes of $^{8}\mathrm{B}$ and $^{7}\mathrm{Be}$ neutrinos, ${\mathrm{\ensuremath{\Phi}}}_{\mathrm{B}}$ and ...
P. Krastev, S. Petcov
semanticscholar +1 more source