hyphite Posted November 27, 2003 Report Posted November 27, 2003 what are neutrinos, and how are they different from photons?
Roberto Posted November 27, 2003 Report Posted November 27, 2003 Neutrinos are a kind of particle named fermion, and is in a subcategory named leptons (light particles). They interact very weakly with other particles mainly by the weak force (the force responsible for particle decays). They are neutral (do not interact electromagnetically) and have almost no mass. Neutrinos are produced in a lot of process, but were proposed first by Fermi to solve the problem of momentum conservation in the neutron decay. There exists 3 kinds of neutrinos, one for the electron, one for the muon and one for the tauon forming what we call the three generations of leptons. Photons are a totally different kind of particle. They're bosons, i.e., force mediators, responsible for the electromagnetic interactions. They have no charge and no mass. Having no mass, they always travel at the light speed in the vaccum, indeed they are the particles that form the light.
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