The solar neutrino problem has been present since early 1970 2, well be fore the first. Observation of such a pulse would lend strong support for neutrino magnetic moments and resolve the missing neutrino problem in neutron star mergers. The solar neutrino problem can be described as the discrepancy between the predicted production of electron neutrinos in the sun and what was being observed on. Solar neutrinos 1 introduction 2 solar neutrino spectrum slac. In the sun, the process of energy generation results from the enormous pressure and density at its centre, which makes it possible for nuclei to. The neutrino wind contribution to neutron star merger ejecta, which depends on the delay time in milliseconds between the merger and black hole formation 31. However, the number of detected neutrinos was only one third of the predicted number. Data from underground detectors in canada and japan combine to provide the.
At every collision of a neutrino with nucleons of the sun, its handedness changes from left to right and vice versa, and its energy decreases. Find, read and cite all the research you need on researchgate. Solar neutrino problem, longstanding astrophysics problem in which the amount of observed neutrinos originating from the sun was much less than expected. The 8b solar neutrino flux as measured by superkamiokande is consistent with the 37ar production rate in 37cl at homestake. Excitedstate contributions to the total solar neutrino capture rate for a ga71 detector are about 14 solar neutrino units for the neutrino spectrum of the standard solar model and about 34. Solar neutrino problem as evidence of new interaction. Solar neutrinos are detected at about onethird the rate that the pp chains produce them see above. The solar neutrino problem concerned a large discrepancy between the flux of solar neutrinos as predicted from the suns luminosity and measured directly.
A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The observed 8b solar neutrino flux is in good agreement with that predicted by the standard so lar model of dar and shaviv with nuclear reaction rates that are. This conflict between theory and observation became known as the solar neutrino problem. The third particle, which had been introduced by pauli to add to the proton and. Two desperate explanations of the solar neutrino puzzle are proposed, one involving. The phenomenon of neutrino oscillation resolved this problem, and con rmed the standard model of the sun. The solar neutrino problem is now considered solved, but i have yet to get a new page on this subject written up.