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28 March 2024
 
  » arxiv » hep-ph/0407079

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Multi-leg calculations with the GRACE/1-LOOP system. --Toward Radiative Corrections to e+e- -> mu nu-bar u d-bar --
F. Boudjema ; J. Fujimoto ; T. Ishikawa ; T. Kaneko ; K.Kato ; Y. Kurihara ; Y. Shimizu ;
Date 7 Jul 2004
Subject hep-ph
Affiliation LAPTH, KEK, Kogakuin Univ.
AbstractWe performed the calculation of the full O(alpha) corrections to e+e- -> mu- nu-bar u d-bar with the help of the GRACE/1-LOOP system. We discuss how a finite decay width introduces a serious gauge invariance breaking, particularly for infrared 5-point functions. This is related to the way the reduction of those functions is performed and to the treatment of the width in the reduction.
Source arXiv, hep-ph/0407079
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