Summary
We consider, in the context of SLAC lattice QCD, the concept of the local effective Lagrangian introduced by Symanzik in his improvement program for lattice quantum field theory. We reemphasize that the respective local effective Lagrangian adds effective large-distance interactions to the local continuum QCD Lagrangian. Some applications of these interactions are discussed.
Riassunto
Si considera, nel contesto del reticolo SLAC della QCD, il concetto di lagrangiana locale efficace introdotto da Symanzik nel suo programma di miglioramento della teoria di campo quantistica del reticolo. Si sottolinea che la rispettiva lagrangiana locale efficace aggiunge interazioni efficaci a lunga distanza alla lagrangiana locale della QCD nel continuo. Si discutono alcune applicazioni di queste interazioni.
Реэюме
В контексте SLAC квантовой хромодинамики на рещетке, мы рассматриваем концепцию локального зффективного Лагранжиана, введенного Симанэиком в его программе усоверщенствования квантовой теории поля на рещетке. Мы эаново подчеркивам, что соответственный локальный зффективный Лагранжиан добавляет зффективные вэаимодействия на больщих расстояниях в локальный непрерывный Лагранжиан квантовой хромодинамики. Обсуждаются некоторые применения зтих вэаимодействий.
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Work supported by the DOE, contract DE-AC03-76SF00515.
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Ward, B.F.L. Symanzik’s local effective Lagrangian for SLAC lattice QCD. Nuov Cim A 97, 237–253 (1987). https://doi.org/10.1007/BF02734934
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DOI: https://doi.org/10.1007/BF02734934