Physicists believe that these types of particles far outnumbered other types beginning one second after the Big Bang until the universe cooled to one billion Kelvins. In order for the number named after these particles to be con- served, a neutron admits a third particle when it decays in addition to a proton and an electron. Only the most massive type of this particle is capable of emitting a W boson, and one of these pa
Physicists believe that these types of particles far outnumbered other types beginning one second after the Big Bang until the universe cooled to one billion Kelvins. In order for the number named after these particles to be con- served, a neutron admits a third particle when it decays in addition to a proton and an electron. Only the most massive type of this particle is capable of emitting a W boson, and one of these particles was formerly believed to be a meson. This family includes the different types of neutrinos and their associated particles, including the tau and the muon. Identify this family of six particles that includes the electron.
Physicists believe that these types of particles far outnumbered other types beginning one second after the Big Bang until the universe cooled to one billion Kelvins.
{leptons}