BPHZ renormalization in configuration space for the A4-model

被引：3
作者：
Pottel, Steffen [1 ,2 ]
机构：
[1] Univ Leipzig, Inst Theoret Phys, Postfach 100920, D-04009 Leipzig, Germany
[2] Max Planck Inst Math Sci, Inselstr 22, D-04103 Leipzig, Germany
来源：
NUCLEAR PHYSICS B | 2018年 / 927卷
关键词：
FEYNMAN INTEGRALS; PERTURBATION-THEORY; CONVERGENCE; FORMULATION; OPERATORS;
D O I：
10.1016/j.nuclphysb.2017.12.020
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：
Recent developments for BPHZ renormalization performed in configuration space are reviewed and applied to the model of a scalar quantum field with quartic self-interaction. An extension of the results regarding the short-distance expansion and the Zimmermann identity is shown for a normal product, which is quadratic in the field operator. The realization of the equation of motion is computed for the interacting field and the relation to parametric differential equations is indicated. (c) 2017 The Author(s). Published by Elsevier B.V.
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页码：274 / 293
页数：20
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