Summing the derivative expansion of the effective action

Eduard Massó, Francesc Rota

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Resum

The derivative expansion of the effective action is a perturbative development in derivatives of the fields. The expansion breaks down when some of the derivatives are too large. We show how to sum exactly the first and second derivatives and treat perturbatively derivatives higher than second. © 2002 Elsevier Science B.V. All rights reserved.
Idioma originalEnglish
Pàgines (de-a)566-578
RevistaNuclear Physics B
Volum620
DOIs
Estat de la publicacióPublicada - 1 de gen. 2002

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