Abstract:
The neutrino is an elementary particle that product from different types of nuclear reactions such as the nuclear reactions that took place in core of the Sun , it is one of the components of the atom, it has not got an electric charge, it has not got a weight, for its weight is almost equal to zero, and moreover, the neutrino has the largest abundance in the universe; and because the neutrino does not interact directly with matter this made the detection of the neutrino is something so difficult; in addition monitoring of the neutrino needs large and sensitive devices and apparatuses .
The studies that focus on the neutrino are of a wide abundance in the history, in this project we will discuss one of the topics on the neutrino, that is the so-called solar neutrino problem, this problem demonstrated as follows: for all the experiments conducted during the last three decades scientists discovered a diminish in the number of neutrinos emitted from the sun compared to the number of neutrinos that are been calculated a accordingly the model; one of the possible explanation is that the neutrino would be converted in to another type of neutrino such as neutrino muon or neutrino tau that is during its travel on its way from the Sun to the Earth.
