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Gamow–Teller transition

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Definición

Artículo WikipediaFuente Dbpedia

A Gamow–Teller transition is, fundamentally, a type of β decay in which the spin vectors of the released electron and electron antineutrino are parallel.In contrast, a Fermi transition is a β decay in which the spin vectors of the released electron and electron antineutrino are anti-parallel.In terms of the interaction Hamiltonian, the probability amplitude from parent to daughter nucleus in a beta-decay forms 2 possible final states: = isospin transition matrix which turn protons to neutrons and vis-versa = rotation matrix which changes parent nucleus parity from 0 → 1.In effect, Gamow–Teller Transitions are an extension of Fermi's theory of β decay and describes parity violation inherent in the weak interaction in terms of nuclear physics.The theoretical work in describing these transitions was done between 1934 and 1936 by Nuclear Physicists George Gamow and Edward Teller at George Washington University.