GIM mechanism

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GIM mechanism

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In quantum field theory, the GIM mechanism (or Glashow–Iliopoulos–Maiani mechanism) is the mechanism through which flavour-changing neutral currents (FCNCs) are suppressed in loop diagrams. It also explains why weak interactions that change strangeness by 2 (ΔS = 2 transitions) are suppressed, while those that change strangeness by 1 (ΔS = 1 transitions) are allowed, but only in charged current interactions.

English Wikipedia http://en.wikipedia.org/wiki/GIM_mechanism

Spanish wikipedia http://es.wikipedia.org/wiki/Mecanismo_GIM

Wiki page external link http://www.physics.uc.edu/~popescu/ppt/weak1.ppt https://archive.org/details/introductiontonu0000dasa_a6y8/page/345 https://web.archive.org/web/20120311195054/http:/www.physics.uc.edu/~popescu/ppt/weak1.ppt