Results 51 to 60 of about 622,311 (244)
Is bi-maximal mixing compatible with the large angle MSW solution of the solar neutrino problem? [PDF]
It is shown that the large angle MSW solution of the solar neutrino problem with a bi-maximal neutrino mixing matrix implies an energy-independent suppression of the solar nu_e flux. The present solar neutrino data exclude this solution of the solar neutrino problem at 99.6% CL.
arxiv +1 more source
Three-flavor MSW solutions of the solar neutrino problem [PDF]
We perform an updated phenomenological analysis of the Mikheyev-Smirnov-Wolfenstein (MSW) solutions of the solar neutrino problem, assuming oscillations between two and three neutrino families. The analysis includes the total rates of the Homestake, SAGE,
G. Fogli+3 more
semanticscholar +1 more source
The study of solar neutrinos has given a fundamental contribution both to astroparticle and to elementary particle physics, offering an ideal test of solar models and offering at the same time relevant indications on the fundamental interactions among ...
V. Antonelli+3 more
doaj +1 more source
History of Solar Neutrino Observations [PDF]
The first solar neutrino experiment led by Raymond Davis Jr. showed a deficit of neutrinos relative to the solar model prediction, referred to as the "solar neutrino problem" since the 1970s. The Kamiokande experiment led by Masatoshi Koshiba successfully observed solar neutrinos, as first reported in 1989.
arxiv
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]
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
Implications of the Dark-LMA solution for neutrino mass matrices
In this work we have re-investigated two different kinds of texture zero ansatz of the low energy neutrino mass matrix in view of the Dark-Large-Mixing-Angle (DLMA) solution of the solar neutrino problem which can arise in the presence of non-standard ...
Monojit Ghosh+2 more
doaj
Constraints on Energy Independent Solutions of the Solar Neutrino Problem [PDF]
We analyze the latest published solar neutrino data assuming an arbitrary neutrino oscillation/conversion mechanism suppresses the electron neutrino flux from the Sun independent of energy. For oscillations/transitions into active (sterile) neutrinos such mechanisms are ruled out at 99.96 (99.9997) % C.L.
arxiv +1 more source
Cold dark matter candidates and the solar neutrino problem
Certain currently proposed weakly interacting elementary particles can have a high probability of solar capture if they make up the Galactic halo. Their present abundance in the Sun is here determined by balancing capture rates against annihilation rates.
L. Krauss+3 more
semanticscholar +1 more source
Solar Neutrino Data, Solar Model Uncertainties and Neutrino Oscillations [PDF]
We incorporate all existing solar neutrino flux measurements and take solar model flux uncertainties into account in deriving global fits to parameter space for the MSW and vacuum solutions of the solar neutrino problem.
arxiv +1 more source