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Title of Journal: Nuov Cim A

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Abbravation: Il Nuovo Cimento A (1965-1970)

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Società Italiana di Fisica

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DOI

10.1016/0014-2999(94)00715-j

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1826-9869

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Electron form factors up to fourth order I

Authors: R Barbieri J A Mignaco E Remiddi
Publish Date: 2007/10/24
Volume: 11, Issue: 4, Pages: 824-864
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Abstract

The explicit results of the analytic evaluation of the discontinuities of the electron form factors and of their zeromomentumtransfer values up to the fourth order of the perturbative expansion of QED in the electric charge are presented Asymptotic and threshold behaviours are discussed The related form of the dispersion relations for the real parts is givenПредлагаются точные реэультаты аналитического вычисления раэрывов злектронных формфакторов и их эначений при нулевых передаваемых импульсах с точностью вплоть до четвертого порядка теории воэмушений по злектрическому эаряду в квантовой злектродинамике Обсуждаются асимптотическое и пороговое поведения Приводится соответствуюшая форма дисперсионного соотнощения для вешественных частейSi presentano i risultati espliciti del calcolo analitico delle discontinuità dei fattori di forma dell’elettrone e dei loro valori a momento trasferito nullo sino al quart’ordine dello sviluppo perturbativo dell’elettrodinamica quantica nella carica elettrica Si discutono i comportamenti asintotici e in soglia Si dà la corrispondente forma delle relazioni di dispersione per le parti reali

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