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The solar neutrino problem concerned a large discrepancy between the flux of solar neutrinos as predicted from the Sun's luminosity and as measured directly. The discrepancy was first observed in the mid-1960s and was resolved around 2002.
The critical issue of the solar neutrino problem, that many astrophysicists interested in solar neutrinos studied and attempted to solve in late 1900s and early 2000s, is solved. In the 21st century, even without a main problem to solve, there is still unique and novel research ongoing in this field of astrophysics.
After Bahcall calculated the rate at which the detector should capture neutrinos, Davis's experiment turned up only one third of this figure. The experiment was the first to successfully detect and count solar neutrinos, and the discrepancy in results created the solar neutrino problem. The experiment operated continuously from 1970 until 1994.
The first experiment that detected the effects of neutrino oscillation was Ray Davis' Homestake experiment in the late 1960s, in which he observed a deficit in the flux of solar neutrinos with respect to the prediction of the Standard Solar Model, using a chlorine-based detector. [8] This gave rise to the solar neutrino problem.
The 4 vertical strips indicate the values of the energies at which the survival probability was measured, by means of pp, 7 Be, pep, and 8 B solar neutrinos, respectively. For the low-energy solar neutrinos, on the other hand, the matter effect is negligible, and the formalism of oscillations in vacuum is valid.
The rate of neutrinos detected by this experiment disagreed with standard solar model predictions. Thanks to the use of gallium, it was the first experiment to observe solar initial pp neutrinos. Another important result was the detection of a smaller number of neutrinos than the standard model predicted (the solar neutrino problem). After ...
The sterile neutrino, if it truly exists, only answers to gravity. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us ...
The operation, also known as the Davis experiment, allowed Raymond Davis, Jr. to measure the flux of solar neutrinos directly. [15] The measurements' discrepancy with the flux predicted from the Sun's luminosity led to Davis's development of the solar neutrino problem. The Homestake experiment publicized the mine as a resource among scientific ...