Two-loop renormalization in the standard model. part I: Prolegomena

被引：40

作者：

Actis, Stefano

Ferroglia, Andrea

Passera, Massimo

Passarino, Giampiero ^{[1
]}

机构：

[1] Univ Turin, Dipartimento Fis Teor, I-10124 Turin, Italy

[2] DESY, Deutsches Elect Synchroton, D-15738 Zeuthen, Germany

[3] Univ Freiburg, Fak Phys, D-7800 Freiburg, Germany

[4] Univ Zurich, Inst Theoret Phys, CH-8001 Zurich, Switzerland

[5] Univ Padua, Dipartimento Fis, Padua, Italy

[6] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy

[7] Ist Nazl Fis Nucl, Sez Torino, Padua, Italy

来源：

NUCLEAR PHYSICS B | 2007年 / 777卷 / 1-2期

关键词：

Feynman diagrams; multi-loop calculations; self-energy diagrams; Vertex diagrams;

D O I：

10.1016/j.nuclphysb.2007.04.021

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In this paper the building blocks for the two-loop renormalization of the Standard Model are introduced with a comprehensive discussion of the special vertices induced in the Lagrangian by a particular diagonalization of the neutral sector and by two alternative treatments of the Higgs tadpoles. Dyson resummed propagators for the gauge bosons are derived, and two-loop Ward-Slavnov-Taylor identities are discussed. In part II, the complete set of counterterms needed for the two-loop renormalization will be derived. In part III. a renormalization scheme will be introduced, connecting the renormalized quantities to an input parameter set of (pseudo-)experimental data, critically discussing renormalization of a gauge theory with unstable particles. (C) 2007 Published by Elsevier B.V.

引用

页码：1 / 34

页数：34

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