Wess-Zumino模型中的三环手性有效势

IF 4.3 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Physics Letters B Pub Date : 2025-05-05 DOI:10.1016/j.physletb.2025.139524

I.L. Buchbinder , R.M. Iakhibbaev , D.I. Kazakov , D.M. Tolkachev

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引用次数: 0

摘要

我们计算了无质量Wess-Zumino模型中手性有效势的三环贡献。结果表明，虽然非重整化定理禁止对手性势的发散贡献，但在无质量的情况下，有限修正仍然存在。在纯手性扇区中，产生超场有效作用的三环超图只有三个。其中两个是紫外有限的，而第三个需要对应于手性场重整化的单环反项。

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Three-loop chiral effective potential in the Wess-Zumino model

We calculate the three-loop contribution to the chiral effective potential in the massless Wess-Zumino model. It is shown that while the non-renormalisation theorem forbids divergent contributions to the chiral potential, in the massless case the finite corrections survive. There are only three triple loop supergraphs that give rise to a superfield effective action in the pure chiral sector. Two of them are UV finite while the third requires one-loop counterterm corresponding to the chiral field renormalisation.

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来源期刊

Physics Letters B 物理-物理：综合

CiteScore

9.10

自引率

6.80%

发文量

647

审稿时长

3 months

期刊介绍： Physics Letters B ensures the rapid publication of important new results in particle physics, nuclear physics and cosmology. Specialized editors are responsible for contributions in experimental nuclear physics, theoretical nuclear physics, experimental high-energy physics, theoretical high-energy physics, and astrophysics.